Blogger BETA already does Categories

After doing all the work to come up with my snazzy Blog-by-topic workaround, I've discovered that Blogger BETA let's you do virtually the same thing. They call it 'Labels'. See this example from a blog of a friend of mine. I haven't decided to take the plunge, yet, since I have already done the work. However, anyone is welcome to take advantage of the work that Blogger has done to give us this feature.