I found Twitter got a new function. We can create a list to group up he people I am following. I am following around 300 people. So, The first page of my twitter will be flooded the updates less than 3 minutes. I can't read the updates at all. I need to categorize the people I am following. I know there are a lot of twitter clients to provide a list to organize the updates. But the web interface is the most accessible way, it is without any software installation. Now, I can have my blog friends' list, News and Goggle Updates list. That is similar to reader the rss feeds. Lastly, the lists are public or private.