Most of us like twitting however sometime we just get bored of the default layout and refreshing our browsers windows again and again, here is a New service Tweetree that would really spice up your twitter account. 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 right in your stream without having to click through every link your friends post [ via Tweetree.com ]