diff --git a/js/app.js b/js/app.js
index c9451e47..520bedbd 100644
--- a/js/app.js
+++ b/js/app.js
@@ -30,6 +30,7 @@ import GoogleAnalyticsHandler from './third_party/ga';
 import RavenHandler from './third_party/raven';
 import IntercomHandler from './third_party/intercom';
 import NotificationsHandler from './third_party/notifications';
+import FacebookHandler from './third_party/facebook';
 /* eslint-enable */
 
 initLogging();
diff --git a/js/components/ascribe_collapsible/collapsible_button.js b/js/components/ascribe_collapsible/collapsible_button.js
index 6fb39c71..caf89df3 100644
--- a/js/components/ascribe_collapsible/collapsible_button.js
+++ b/js/components/ascribe_collapsible/collapsible_button.js
@@ -21,13 +21,13 @@ let CollapsibleButton = React.createClass({
         this.setState({expanded: !this.state.expanded});
     },
     render() {
-        let isVisible = (this.state.expanded) ? '' : 'invisible';
+        let isHidden = (this.state.expanded) ? '' : 'hidden';
         return (
             <span>
                 <span onClick={this.handleToggle}>
                     {this.props.button}
                 </span>
-                <div ref='panel' className={isVisible}>
+                <div ref='panel' className={isHidden}>
                     {this.props.panel}
                 </div>
             </span>
diff --git a/js/components/ascribe_detail/media_container.js b/js/components/ascribe_detail/media_container.js
index d31a205f..c6845a44 100644
--- a/js/components/ascribe_detail/media_container.js
+++ b/js/components/ascribe_detail/media_container.js
@@ -7,10 +7,18 @@ import Glyphicon from 'react-bootstrap/lib/Glyphicon';
 
 import MediaPlayer from './../ascribe_media/media_player';
 
+import FacebookShareButton from '../ascribe_social_share/facebook_share_button';
+import TwitterShareButton from '../ascribe_social_share/twitter_share_button';
+
 import CollapsibleButton from './../ascribe_collapsible/collapsible_button';
 
 import AclProxy from '../acl_proxy';
 
+import UserActions from '../../actions/user_actions';
+import UserStore from '../../stores/user_store';
+
+import { mergeOptions } from '../../utils/general_utils.js';
+import { getLangText } from '../../utils/lang_utils.js';
 
 const EMBED_IFRAME_HEIGHT = {
     video: 315,
@@ -24,10 +32,17 @@ let MediaContainer = React.createClass({
     },
 
     getInitialState() {
-        return {timerId: null};
+        return mergeOptions(
+            UserStore.getState(),
+            {
+                timerId: null
+            });
     },
 
     componentDidMount() {
+        UserStore.listen(this.onChange);
+        UserActions.fetchCurrentUser();
+
         if (!this.props.content.digital_work) {
             return;
         }
@@ -45,19 +60,32 @@ let MediaContainer = React.createClass({
     },
 
     componentWillUnmount() {
+        UserStore.unlisten(this.onChange);
+
         window.clearInterval(this.state.timerId);
     },
 
+    onChange(state) {
+        this.setState(state);
+    },
+
     render() {
-        let thumbnail = this.props.content.thumbnail.thumbnail_sizes && this.props.content.thumbnail.thumbnail_sizes['600x600'] ?
-            this.props.content.thumbnail.thumbnail_sizes['600x600'] : this.props.content.thumbnail.url_safe;
-        let mimetype = this.props.content.digital_work.mime;
+        const { content } = this.props;
+        // Pieces and editions are joined to the user by a foreign key in the database, so
+        // the information in content will be updated if a user updates their username.
+        // We also force uniqueness of usernames, so this check is safe to dtermine if the
+        // content was registered by the current user.
+        const didUserRegisterContent = this.state.currentUser && (this.state.currentUser.username === content.user_registered);
+
+        let thumbnail = content.thumbnail.thumbnail_sizes && content.thumbnail.thumbnail_sizes['600x600'] ?
+            content.thumbnail.thumbnail_sizes['600x600'] : content.thumbnail.url_safe;
+        let mimetype = content.digital_work.mime;
         let embed = null;
         let extraData = null;
-        let isEmbedDisabled = mimetype === 'video' && this.props.content.digital_work.isEncoding !== undefined && this.props.content.digital_work.isEncoding !== 100;
+        let isEmbedDisabled = mimetype === 'video' && content.digital_work.isEncoding !== undefined && content.digital_work.isEncoding !== 100;
 
-        if (this.props.content.digital_work.encoding_urls) {
-            extraData = this.props.content.digital_work.encoding_urls.map(e => { return { url: e.url, type: e.label }; });
+        if (content.digital_work.encoding_urls) {
+            extraData = content.digital_work.encoding_urls.map(e => { return { url: e.url, type: e.label }; });
         }
 
         if (['video', 'audio'].indexOf(mimetype) > -1) {
@@ -73,7 +101,7 @@ let MediaContainer = React.createClass({
                     panel={
                         <pre className="">
                             {'<iframe width="560" height="' + height + '" src="https://embed.ascribe.io/content/'
-                                + this.props.content.bitcoin_id + '" frameborder="0" allowfullscreen></iframe>'}
+                                + content.bitcoin_id + '" frameborder="0" allowfullscreen></iframe>'}
                         </pre>
                     }/>
             );
@@ -83,13 +111,19 @@ let MediaContainer = React.createClass({
                 <MediaPlayer
                     mimetype={mimetype}
                     preview={thumbnail}
-                    url={this.props.content.digital_work.url}
+                    url={content.digital_work.url}
                     extraData={extraData}
-                    encodingStatus={this.props.content.digital_work.isEncoding} />
+                    encodingStatus={content.digital_work.isEncoding} />
                 <p className="text-center">
+                    <span className="ascribe-social-button-list">
+                        <FacebookShareButton />
+                        <TwitterShareButton
+                            text={getLangText('Check out %s ascribed piece', didUserRegisterContent ? 'my latest' : 'this' )} />
+                    </span>
+
                     <AclProxy
-                        show={['video', 'audio', 'image'].indexOf(mimetype) === -1 || this.props.content.acl.acl_download}
-                        aclObject={this.props.content.acl}
+                        show={['video', 'audio', 'image'].indexOf(mimetype) === -1 || content.acl.acl_download}
+                        aclObject={content.acl}
                         aclName="acl_download">
                         <Button bsSize="xsmall" className="ascribe-margin-1px" href={this.props.content.digital_work.url} target="_blank">
                             Download .{mimetype} <Glyphicon glyph="cloud-download"/>
diff --git a/js/components/ascribe_media/media_player.js b/js/components/ascribe_media/media_player.js
index 19d6a1c7..2a23f2ed 100644
--- a/js/components/ascribe_media/media_player.js
+++ b/js/components/ascribe_media/media_player.js
@@ -3,12 +3,13 @@
 import React from 'react';
 import Q from 'q';
 
-import { escapeHTML } from '../../utils/general_utils';
-
-import InjectInHeadMixin from '../../mixins/inject_in_head_mixin';
 import Panel from 'react-bootstrap/lib/Panel';
 import ProgressBar from 'react-bootstrap/lib/ProgressBar';
-import AppConstants from '../../constants/application_constants.js';
+
+import AppConstants from '../../constants/application_constants';
+
+import { escapeHTML } from '../../utils/general_utils';
+import { InjectInHeadUtils } from '../../utils/inject_utils';
 
 /**
  * This is the component that implements display-specific functionality.
@@ -54,15 +55,13 @@ let Image = React.createClass({
         preview: React.PropTypes.string.isRequired
     },
 
-    mixins: [InjectInHeadMixin],
-
     componentDidMount() {
         if(this.props.url) {
-            this.inject('https://code.jquery.com/jquery-2.1.4.min.js')
+            InjectInHeadUtils.inject(AppConstants.jquery.sdkUrl)
                 .then(() =>
                     Q.all([
-                        this.inject(AppConstants.baseUrl + 'static/thirdparty/shmui/shmui.css'),
-                        this.inject(AppConstants.baseUrl + 'static/thirdparty/shmui/jquery.shmui.js')
+                        InjectInHeadUtils.inject(AppConstants.shmui.cssUrl),
+                        InjectInHeadUtils.inject(AppConstants.shmui.sdkUrl)
                     ]).then(() => { window.jQuery('.shmui-ascribe').shmui(); }));
         }
     },
@@ -87,10 +86,8 @@ let Audio = React.createClass({
         url: React.PropTypes.string.isRequired
     },
 
-    mixins: [InjectInHeadMixin],
-
     componentDidMount() {
-        this.inject(AppConstants.baseUrl + 'static/thirdparty/audiojs/audiojs/audio.min.js').then(this.ready);
+        InjectInHeadUtils.inject(AppConstants.audiojs.sdkUrl).then(this.ready);
     },
 
     ready() {
@@ -121,7 +118,7 @@ let Video = React.createClass({
      *    `false` if we failed to load the external library)
      * 2) render the cover using the `<Image />` component (because libraryLoaded is null)
      * 3) on `componentDidMount`, we load the external `css` and `js` resources using
-     *    the `InjectInHeadMixin`, attaching a function to `Promise.then` to change
+     *    the `InjectInHeadUtils`, attaching a function to `Promise.then` to change
      *    `state.libraryLoaded` to true
      * 4) when the promise is succesfully resolved, we change `state.libraryLoaded` triggering
      *    a re-render
@@ -139,20 +136,22 @@ let Video = React.createClass({
         encodingStatus: React.PropTypes.number
     },
 
-    mixins: [InjectInHeadMixin],
-
     getInitialState() {
         return { libraryLoaded: null, videoMounted: false };
     },
 
     componentDidMount() {
         Q.all([
-            this.inject('//vjs.zencdn.net/4.12/video-js.css'),
-            this.inject('//vjs.zencdn.net/4.12/video.js')])
+            InjectInHeadUtils.inject(AppConstants.videojs.cssUrl),
+            InjectInHeadUtils.inject(AppConstants.videojs.sdkUrl)])
         .then(() => this.setState({libraryLoaded: true}))
         .fail(() => this.setState({libraryLoaded: false}));
     },
 
+    shouldComponentUpdate(nextProps, nextState) {
+        return nextState.videoMounted === false;
+    },
+
     componentDidUpdate() {
         if (this.state.libraryLoaded && !this.state.videoMounted) {
             window.videojs('#mainvideo');
@@ -178,10 +177,6 @@ let Video = React.createClass({
         return html.join('\n');
     },
 
-    shouldComponentUpdate(nextProps, nextState) {
-        return nextState.videoMounted === false;
-    },
-
     render() {
         if (this.state.libraryLoaded !== null) {
             return (
diff --git a/js/components/ascribe_social_share/facebook_share_button.js b/js/components/ascribe_social_share/facebook_share_button.js
new file mode 100644
index 00000000..87a2aef6
--- /dev/null
+++ b/js/components/ascribe_social_share/facebook_share_button.js
@@ -0,0 +1,51 @@
+'use strict';
+
+import React from 'react';
+
+import AppConstants from '../../constants/application_constants';
+
+import { InjectInHeadUtils } from '../../utils/inject_utils';
+
+let FacebookShareButton = React.createClass({
+    propTypes: {
+        url: React.PropTypes.string,
+        type: React.PropTypes.string
+    },
+
+    getDefaultProps() {
+        return {
+            type: 'button'
+        };
+    },
+
+    componentDidMount() {
+        /**
+         * Ideally we would only use FB.XFBML.parse() on the component that we're
+         * mounting, but doing this when we first load the FB sdk causes unpredictable behaviour.
+         * The button sometimes doesn't get initialized, likely because FB hasn't properly
+         * been initialized yet.
+         *
+         * To circumvent this, we always have the sdk parse the entire DOM on the initial load
+         * (see FacebookHandler) and then use FB.XFBML.parse() on the mounting component later.
+         */
+        if (!InjectInHeadUtils.isPresent('script', AppConstants.facebook.sdkUrl)) {
+            InjectInHeadUtils.inject(AppConstants.facebook.sdkUrl);
+        } else {
+            // Parse() searches the children of the element we give it, not the element itself.
+            FB.XFBML.parse(this.refs.fbShareButton.getDOMNode().parentElement);
+        }
+    },
+
+    render() {
+        return (
+            <span
+                ref="fbShareButton"
+                className="fb-share-button btn btn-ascribe-social"
+                data-href={this.props.url}
+                data-layout={this.props.type}>
+            </span>
+        );
+    }
+});
+
+export default FacebookShareButton;
diff --git a/js/components/ascribe_social_share/twitter_share_button.js b/js/components/ascribe_social_share/twitter_share_button.js
new file mode 100644
index 00000000..b2e8a7dc
--- /dev/null
+++ b/js/components/ascribe_social_share/twitter_share_button.js
@@ -0,0 +1,55 @@
+'use strict';
+
+import React from 'react';
+
+import AppConstants from '../../constants/application_constants';
+
+import { InjectInHeadUtils } from '../../utils/inject_utils';
+
+let TwitterShareButton = React.createClass({
+    propTypes: {
+        count: React.PropTypes.string,
+        counturl: React.PropTypes.string,
+        hashtags: React.PropTypes.string,
+        size: React.PropTypes.string,
+        text: React.PropTypes.string,
+        url: React.PropTypes.string,
+        via: React.PropTypes.string
+    },
+
+    getDefaultProps() {
+        return {
+            count: 'none',
+            via: 'ascribeIO'
+        };
+    },
+
+    componentDidMount() {
+        InjectInHeadUtils.inject(AppConstants.twitter.sdkUrl).then(this.loadTwitterButton);
+    },
+
+    loadTwitterButton() {
+        const { count, counturl, hashtags, size, text, url, via } = this.props;
+
+        twttr.widgets.createShareButton(url, this.refs.twitterShareButton.getDOMNode(), {
+            count,
+            counturl,
+            hashtags,
+            size,
+            text,
+            via,
+            dnt: true   // Do not track
+        });
+    },
+
+    render() {
+        return (
+            <span
+                ref="twitterShareButton"
+                className="btn btn-ascribe-social">
+            </span>
+        );
+    }
+});
+
+export default TwitterShareButton;
diff --git a/js/constants/application_constants.js b/js/constants/application_constants.js
index 0ada8fe3..a58a8cc6 100644
--- a/js/constants/application_constants.js
+++ b/js/constants/application_constants.js
@@ -1,15 +1,19 @@
 'use strict';
 
-let constants = {
-    //'baseUrl': 'http://localhost:8000/api/',
+//const baseUrl = 'http://localhost:8000/api/';
 
-    //FIXME: referring to a global variable in `window` is not
-    // super pro. What if we render stuff on the server?
-    //      - super-bro - Senor Developer, 14th July 2015
-    //'baseUrl': window.BASE_URL,
-    'apiEndpoint': window.API_ENDPOINT,
-    'serverUrl': window.SERVER_URL,
-    'baseUrl': window.BASE_URL,
+//FIXME: referring to a global variable in `window` is not
+// super pro. What if we render stuff on the server?
+//      - super-bro - Senor Developer, 14th July 2015
+//const baseUrl = window.BASE_URL;
+const apiEndpoint = window.API_ENDPOINT;
+const serverUrl = window.SERVER_URL;
+const baseUrl = window.BASE_URL;
+
+const constants = {
+    apiEndpoint,
+    serverUrl,
+    baseUrl,
     'aclList': ['acl_coa', 'acl_consign', 'acl_delete', 'acl_download', 'acl_edit', 'acl_create_editions', 'acl_view_editions',
                 'acl_loan', 'acl_loan_request', 'acl_share', 'acl_transfer', 'acl_unconsign', 'acl_unshare', 'acl_view',
                 'acl_withdraw_transfer', 'acl_wallet_submit'],
@@ -77,16 +81,40 @@ let constants = {
         }
     },
 
-    // in case of whitelabel customization, we store stuff here
-    'whitelabel': {},
-    'raven': {
-        'url': 'https://0955da3388c64ab29bd32c2a429f9ef4@app.getsentry.com/48351'
-    },
     'copyrightAssociations': ['ARS', 'DACS', 'Bildkunst', 'Pictoright', 'SODRAC', 'Copyright Agency/Viscopy', 'SAVA',
         'Bildrecht GmbH', 'SABAM', 'AUTVIS', 'CREAIMAGEN', 'SONECA', 'Copydan', 'EAU', 'Kuvasto', 'GCA', 'HUNGART',
         'IVARO', 'SIAE', 'JASPAR-SPDA', 'AKKA/LAA', 'LATGA-A', 'SOMAAP', 'ARTEGESTION', 'CARIER', 'BONO', 'APSAV',
         'SPA', 'GESTOR', 'VISaRTA', 'RAO', 'LITA', 'DALRO', 'VeGaP', 'BUS', 'ProLitteris', 'AGADU', 'AUTORARTE', 'BUBEDRA', 'BBDA', 'BCDA', 'BURIDA', 'ADAVIS', 'BSDA'],
-    'searchThreshold': 500
+    'searchThreshold': 500,
+
+    // in case of whitelabel customization, we store stuff here
+    'whitelabel': {},
+
+    // 3rd party integrations
+    'jquery': {
+        'sdkUrl': 'https://code.jquery.com/jquery-2.1.4.min.js'
+    },
+    'shmui': {
+        'sdkUrl': baseUrl + 'static/thirdparty/shmui/jquery.shmui.js',
+        'cssUrl': baseUrl + 'static/thirdparty/shmui/shmui.css'
+    },
+    'audiojs': {
+        'sdkUrl': baseUrl + 'static/thirdparty/audiojs/audiojs/audio.min.js'
+    },
+    'videojs': {
+        'sdkUrl': '//vjs.zencdn.net/4.12/video.js',
+        'cssUrl': '//vjs.zencdn.net/4.12/video-js.css'
+    },
+    'raven': {
+        'url': 'https://0955da3388c64ab29bd32c2a429f9ef4@app.getsentry.com/48351'
+    },
+    'facebook': {
+        'appId': '420813844732240',
+        'sdkUrl': '//connect.facebook.net/en_US/sdk.js'
+    },
+    'twitter': {
+        'sdkUrl': 'https://platform.twitter.com/widgets.js'
+    }
 };
 
 export default constants;
diff --git a/js/mixins/inject_in_head_mixin.js b/js/mixins/inject_in_head_mixin.js
deleted file mode 100644
index 6eacacad..00000000
--- a/js/mixins/inject_in_head_mixin.js
+++ /dev/null
@@ -1,71 +0,0 @@
-'use strict';
-
-import Q from 'q';
-
-let mapAttr = {
-    link: 'href',
-    script: 'src'
-};
-
-let mapTag = {
-    js: 'script',
-    css: 'link'
-};
-
-
-let InjectInHeadMixin = {
-    /**
-     * Provide functions to inject `<script>` and `<link>` in `<head>`.
-     * Useful when you have to load a huge external library and
-     * you don't want to embed everything inside the build file.
-     */
-
-    isPresent(tag, src) {
-        let attr = mapAttr[tag];
-        let query = `head > ${tag}[${attr}="${src}"]`;
-        return document.querySelector(query);
-    },
-
-    injectTag(tag, src) {
-        return Q.Promise((resolve, reject) => {
-            if (InjectInHeadMixin.isPresent(tag, src)) {
-                resolve();
-            } else {
-                let attr = mapAttr[tag];
-                let element = document.createElement(tag);
-                if (tag === 'script') {
-                    element.onload = () => resolve();
-                    element.onerror = () => reject();
-                } else {
-                    resolve();
-                }
-                document.head.appendChild(element);
-                element[attr] = src;
-                if (tag === 'link') {
-                    element.rel = 'stylesheet';
-                }
-            }
-        });
-    },
-
-    injectStylesheet(src) {
-        return InjectInHeadMixin.injectTag('link', src);
-    },
-
-    injectScript(src) {
-        return InjectInHeadMixin.injectTag('source', src);
-    },
-
-    inject(src) {
-        let ext = src.split('.').pop();
-        let tag = mapTag[ext];
-        if (!tag) {
-            throw new Error(`Cannot inject ${src} in the DOM, cannot guess the tag name from extension "${ext}". Valid extensions are "js" and "css".`);
-        }
-
-        return InjectInHeadMixin.injectTag(tag, src);
-    }
-
-};
-
-export default InjectInHeadMixin;
diff --git a/js/third_party/facebook.js b/js/third_party/facebook.js
new file mode 100644
index 00000000..eab0b0e0
--- /dev/null
+++ b/js/third_party/facebook.js
@@ -0,0 +1,30 @@
+'use strict';
+
+import { altThirdParty } from '../alt';
+import EventActions from '../actions/event_actions';
+
+import AppConstants from '../constants/application_constants'
+
+class FacebookHandler {
+    constructor() {
+        this.bindActions(EventActions);
+    }
+
+    onApplicationWillBoot(settings) {
+        // Callback function that FB's sdk will call when it's finished loading
+        // See https://developers.facebook.com/docs/javascript/quickstart/v2.5
+        window.fbAsyncInit = () => {
+            FB.init({
+                appId: AppConstants.facebook.appId,
+                // Force FB to parse everything on first load to make sure all the XFBML components are initialized.
+                // If we don't do this, we can run into issues with components on the first load who are not be
+                // initialized.
+                xfbml: true,
+                version: 'v2.5',
+                cookie: false
+            });
+        };
+    }
+}
+
+export default altThirdParty.createStore(FacebookHandler, 'FacebookHandler');
diff --git a/js/utils/inject_utils.js b/js/utils/inject_utils.js
new file mode 100644
index 00000000..174ac8b6
--- /dev/null
+++ b/js/utils/inject_utils.js
@@ -0,0 +1,72 @@
+'use strict';
+
+import Q from 'q';
+
+let mapAttr = {
+    link: 'href',
+    script: 'src'
+};
+
+let mapTag = {
+    js: 'script',
+    css: 'link'
+};
+
+function injectTag(tag, src) {
+    return Q.Promise((resolve, reject) => {
+        if (isPresent(tag, src)) {
+            resolve();
+        } else {
+            let attr = mapAttr[tag];
+            let element = document.createElement(tag);
+            if (tag === 'script') {
+                element.onload = () => resolve();
+                element.onerror = () => reject();
+            } else {
+                resolve();
+            }
+            document.head.appendChild(element);
+            element[attr] = src;
+            if (tag === 'link') {
+                element.rel = 'stylesheet';
+            }
+        }
+    });
+}
+
+function isPresent(tag, src) {
+    let attr = mapAttr[tag];
+    let query = `head > ${tag}[${attr}="${src}"]`;
+    return document.querySelector(query);
+}
+
+function injectStylesheet(src) {
+    return injectTag('link', src);
+}
+
+function injectScript(src) {
+    return injectTag('source', src);
+}
+
+function inject(src) {
+    let ext = src.split('.').pop();
+    let tag = mapTag[ext];
+    if (!tag) {
+        throw new Error(`Cannot inject ${src} in the DOM, cannot guess the tag name from extension "${ext}". Valid extensions are "js" and "css".`);
+    }
+
+    return injectTag(tag, src);
+}
+
+export const InjectInHeadUtils = {
+    /**
+     * Provide functions to inject `<script>` and `<link>` in `<head>`.
+     * Useful when you have to load a huge external library and
+     * you don't want to embed everything inside the build file.
+     */
+
+    isPresent,
+    injectStylesheet,
+    injectScript,
+    inject
+};
diff --git a/sass/ascribe_social_share.scss b/sass/ascribe_social_share.scss
new file mode 100644
index 00000000..0a577fb6
--- /dev/null
+++ b/sass/ascribe_social_share.scss
@@ -0,0 +1,10 @@
+.ascribe-social-button-list {
+    margin-right: 10px;
+}
+
+.btn-ascribe-social {
+    height: 20px;
+    width: 56px;
+    box-sizing: content-box;   /* We want to ignore padding in these calculations as we use the sdk buttons' height and width */
+    padding: 1px 0;
+}
diff --git a/sass/main.scss b/sass/main.scss
index 337dd32e..8a732e96 100644
--- a/sass/main.scss
+++ b/sass/main.scss
@@ -31,6 +31,7 @@ $BASE_URL: '<%= BASE_URL %>';
 @import 'offset_right';
 @import 'ascribe_settings';
 @import 'ascribe_slides_container';
+@import 'ascribe_social_share';
 @import 'ascribe_property';
 @import 'ascribe_form';
 @import 'ascribe_panel';