p3k updates this week:
Now I can post videos! http://aaronparecki.com/notes/2014/09/10/1/webactions
Added support for bookmark posts, and bookmarks can be created via micropub! http://aaronparecki.com/notes/2014/09/07/1/indieweb-bookmarks
Added a new interface to https://quill.p3k.io for creating bookmark posts. You can use it if you add bookmark support to your Micropub endpoint!