diff --git a/dbTools/post.js b/dbTools/post.js
index 6c36e99..f3a6e03 100644
--- a/dbTools/post.js
+++ b/dbTools/post.js
@@ -41,6 +41,32 @@ postDB = (DB)=>{
         });
     }
 
+    DB.bookmarkPost = async (postid, profileId)=>{
+        const _id = DB.ObjectID(postid);
+        let update = {
+            $addToSet:{
+                bookmarks: DB.ObjectID(profileId)
+            }            
+        }
+        return DB.postCols.updateOne({_id}, update).catch((err)=>{
+            console.log(err);
+            return false;
+        });
+    }
+
+    DB.unbookmarkPost = async (postid, profileId)=>{
+        const _id = DB.ObjectID(postid);
+        let update = {
+            $pull:{
+                bookmarks: DB.ObjectID(profileId)
+            }            
+        }
+        return DB.postCols.updateOne({_id}, update).catch((err)=>{
+            console.log(err);
+            return false;
+        });
+    }
+
     DB.newComment = (postid, comment) => {
         const id = DB.ObjectID(postid);
         return DB.postCols.updateOne({_id: id}, {
diff --git a/def/post.js b/def/post.js
index e900285..372e311 100644
--- a/def/post.js
+++ b/def/post.js
@@ -6,6 +6,7 @@ class Post {
         this.createdAt = info.createdAt || new Date();
         this.reactions = info.reactions || {};
         this.comments = info.comments || [];
+        this.bookmarks = info.bookmarks || []; //set profiles subscribed to this post
         //This should record edits
         this.contentHistory = info.contentHistory || [];
         this.toProfile = info.toProfile || '';
diff --git a/notifications.js b/notifications.js
index 5c99a72..072ed32 100644
--- a/notifications.js
+++ b/notifications.js
@@ -25,7 +25,11 @@ const Notifications = {
     async youGotANewPostComment(postId, whoPostedId, message){
         const DB = await DBGetter.getDB;
         const post = await DB.getPost(postId)
+        if(post.bookmarks){
+          //send notification to boorkmaked profiles
+        }
         const profile = await DB.getProfileCache(post.profileid);
+        if(profile.isCourse) return 0; //Course owners do not need to receive notifs
         const user = await DB.getUserById(profile.userid);
         const senderProfile = await DB.getProfileCache(whoPostedId);
         let subject = senderProfile.profile.firstName + " comment on your post";
diff --git a/routes/post.js b/routes/post.js
index 2fe9178..d3fda5f 100644
--- a/routes/post.js
+++ b/routes/post.js
@@ -44,23 +44,40 @@ DB.getDB.then((DB)=>{
     });
 
     router.post("/react", async (req, res) => {
-        let userid = getProfileId(req);
+        let profileid = getProfileId(req);
         let postid = req.body.postid;
         let reaction = {
             type: "like",
             createdAt: new Date()
         };
-        r = await DB.newReaction(postid, userid, reaction);
+        r = await DB.newReaction(postid, profileid, reaction);
         return res.json({
             status: "ok"
         });
     })
 
     router.post("/unreact", async (req, res) => {
-        let userid = getProfileId(req);
+        let profileid = getProfileId(req);
         let postid = req.body.postid;
-        r = await DB.removeReaction(postid, userid);
-        console.log(r)
+        r = await DB.removeReaction(postid, profileid);
+        return res.json({
+            status: "ok"
+        })
+    });
+
+    router.post("/bookmark", async (req, res) => {
+        let profileid = getProfileId(req);
+        let postid = req.body.postid;
+        r = await DB.bookmarkPost(postid, profileid);
+        return res.json({
+            status: "ok"
+        });
+    })
+
+    router.post("/unbookmark", async (req, res) => {
+        let profileid = getProfileId(req);
+        let postid = req.body.postid;
+        r = await DB.unbookmarkPost(postid, profileid);
         return res.json({
             status: "ok"
         })