A few bit.ly users who also heavily use Delicious and Twitter have asked for an easier way to sync all these services. We recently came up with a pretty good way to automate this sync process using Twitterfeed.
Tweetree puts your Twitter stream in a tree so you can see the posts people are replying to in context. It also pulls in lots of external content like twitpic photos, youtube videos and more, so that you can see them in the stream without having to click through links.