Disqus is good for an MVP. It's easy to embed and works well. If you're worried about "owning" the data/community, you could host your own discourse (http://w

Disqus is good for an MVP. It's easy to embed and works well. If you're worried about "owning" the data/community, you could host your own discourse (http://www.discourse.org/ http://www.discourse.org/) instance and use their embed feature (http://eviltrout.com/2014/01/22/embedding-discourse.html http://eviltrout.com/2014/01/22/embedding-discourse.html). Embedding is sadly missing inline commenting, though.