Posterous is helping me scratch an itch to publish online. It hits a sweet spot somewhere between microblogging and blogging. Maybe it’s just Tumblr on steroids. Oh, by the way, I am composing this post in my email client and just sending it via email. I’ve also got a Posterous bookmarklet that’s got a few cool tricks up its sleeve. If you highlight text on the web and then use the bookmarklet, Posterous will use feature that excerpted text in your post (as well as link back to the original page that it came from).