diff --git a/client/html/post_edit_sidebar.tpl b/client/html/post_edit_sidebar.tpl
index a66a375f..e13070af 100644
--- a/client/html/post_edit_sidebar.tpl
+++ b/client/html/post_edit_sidebar.tpl
@@ -93,6 +93,15 @@
             </section>
         <% } %>
 
+        <% if (ctx.canEditPostSource) { %>
+            <section class='post-source'>
+                <%= ctx.makeTextInput({
+                    text: 'Source',
+                    name: 'source',
+                }) %>
+            </section>
+        <% } %>
+
         <% if (ctx.canFeaturePosts || ctx.canDeletePosts || ctx.canMergePosts) { %>
             <section class='management'>
                 <ul>
diff --git a/client/html/post_readonly_sidebar.tpl b/client/html/post_readonly_sidebar.tpl
index 401ce209..2b4712c5 100644
--- a/client/html/post_readonly_sidebar.tpl
+++ b/client/html/post_readonly_sidebar.tpl
@@ -44,6 +44,21 @@
             <a href='https://www.google.com/searchbyimage?&image_url=<%- encodeURIComponent(ctx.post.fullContentUrl) %>'>Google Images</a>
         </section>
 
+        <section class='source'>
+            Source:
+            <% if (ctx.post.source) { %>
+                <a href='<%- ctx.post.source %>'>
+                    <% if (ctx.post.source.length > 30) { %>
+                        <%- ctx.post.source.substr(0,27) + '...' %>
+                    <% } else { %>
+                        <%- ctx.post.source %>
+                    <% } %>
+                </a>
+            <% } else { %>
+                None!
+            <% } %>
+        </section>
+
         <section class='social'>
             <div class='score-container'></div>
 
diff --git a/client/js/controls/post_edit_sidebar_control.js b/client/js/controls/post_edit_sidebar_control.js
index a5af449c..856a9f06 100644
--- a/client/js/controls/post_edit_sidebar_control.js
+++ b/client/js/controls/post_edit_sidebar_control.js
@@ -37,6 +37,7 @@ class PostEditSidebarControl extends events.EventTarget {
             canEditPostFlags: api.hasPrivilege('posts:edit:flags'),
             canEditPostContent: api.hasPrivilege('posts:edit:content'),
             canEditPostThumbnail: api.hasPrivilege('posts:edit:thumbnail'),
+            canEditPostSource : api.hasPrivilege('posts:edit:source'),
             canCreateAnonymousPosts: api.hasPrivilege('posts:create:anonymous'),
             canDeletePosts: api.hasPrivilege('posts:delete'),
             canFeaturePosts: api.hasPrivilege('posts:feature'),
@@ -58,7 +59,7 @@ class PostEditSidebarControl extends events.EventTarget {
         new ExpanderControl(
             'post-content',
             'Content',
-            this._hostNode.querySelectorAll('.post-content, .post-thumbnail'));
+            this._hostNode.querySelectorAll('.post-content, .post-thumbnail, .post-source'));
         new ExpanderControl(
             'post-management',
             'Management',
@@ -349,6 +350,10 @@ class PostEditSidebarControl extends events.EventTarget {
                 thumbnail: this._newPostThumbnail !== undefined ?
                     this._newPostThumbnail :
                     undefined,
+
+                source: this._sourceInputNode ?
+                    this._sourceInputNode.value :
+                    undefined,
             },
         }));
     }
@@ -402,6 +407,10 @@ class PostEditSidebarControl extends events.EventTarget {
         return this._formNode.querySelector('.post-thumbnail a');
     }
 
+    get _sourceInputNode() {
+        return this._formNode.querySelector('.post-source input');
+    }
+
     get _featureLinkNode() {
         return this._formNode.querySelector('.management .feature');
     }
diff --git a/client/js/models/post.js b/client/js/models/post.js
index aea8c4cc..0d9b0d42 100644
--- a/client/js/models/post.js
+++ b/client/js/models/post.js
@@ -32,6 +32,7 @@ class Post extends events.EventTarget {
     get contentUrl()         { return this._contentUrl; }
     get fullContentUrl()     { return this._fullContentUrl; }
     get thumbnailUrl()       { return this._thumbnailUrl; }
+    get source()             { return this._source; }
     get canvasWidth()        { return this._canvasWidth || 800; }
     get canvasHeight()       { return this._canvasHeight || 450; }
     get fileSize()           { return this._fileSize || 0; }
@@ -57,6 +58,7 @@ class Post extends events.EventTarget {
     set relations(value)     { this._relations = value; }
     set newContent(value)    { this._newContent = value; }
     set newThumbnail(value)  { this._newThumbnail = value; }
+    set source(value)        { this._source = value; }
 
     static fromResponse(response) {
         const ret = new Post();
@@ -122,6 +124,9 @@ class Post extends events.EventTarget {
         if (this._newThumbnail !== undefined) {
             files.thumbnail = this._newThumbnail;
         }
+        if (this._source !== this._orig._source) {
+            detail.source = this._source;
+        }
 
         let apiPromise = this._id ?
             api.put(uri.formatApiLink('post', this.id), detail, files) :
@@ -278,6 +283,7 @@ class Post extends events.EventTarget {
             _contentUrl:    response.contentUrl,
             _fullContentUrl: new URL(response.contentUrl, document.getElementsByTagName('base')[0].href).href,
             _thumbnailUrl:  response.thumbnailUrl,
+            _source:        response.source,
             _canvasWidth:   response.canvasWidth,
             _canvasHeight:  response.canvasHeight,
             _fileSize:      response.fileSize,