Good list, it appears Bulletin (http://bulletin.io) is not on the list. Would love to hear feedback regarding it.

It has now been added: https://starthq.com/apps/bulletin

Thank you!

At the risk of being that ass who self promotes, you should check out the service myself and a friend launched yesterday:

http://bulletin.io is a fast, easy to use RSS reading service that has an open Google Reader lookalike API as well as our own OAuth implementation. Open to feedback from everyone.