If you use WordPress for you blog, and are looking for a way to really make your Twitter feed alive then you need the add-on Vikinghammer Tweet. I just installed this, and am completely jazzed on what it can do. I was also happy to find it because if I didn’t, I was going to have to build it myself. What does it do? It tweets your blog posts (already been done I know), and it tweets comments made on your blog (this is the good stuff).