June 2010
4 posts
4 tags
Posterous lets you sign in with Facebook or Twitter to comment.
If you sign in with Twitter and check you want to post to Facebook, it pops up the Facebook oAuth window after you hit comment while simultaneously posting your comment to the blog via an ajax call. They also have a very nice tweet composition window.
3 tags
5 tags
May 2010
4 posts
3 tags
Meetup.com has a nice notification of new features that feels like an inbox
April 2010
4 posts
2 tags
Disqus hides the complexity of its share checkboxes without obscuring it