FriendFeed by Email - Posterous competitor?
friendfeed.com
friendfeed.com
I think it gives people who aren't exactly looking for a blog setup for a place to send their items. I feel bad sometimes doing a one liner email to posterous where it dilutes the blog's other content with small posts. Putting small micro posts to friendfeed would be much better in those situations.
They can also autopost to other services. But, so can friendfeed. And friendfeed has features on top of that like rooms, a realtime feed, and support for tons of services.