TailRank released some new features on the 24th of March, most importantly, sub-sections on specific topics. Can you guess which ones? Of course, tech and politics - the core duopoly of the blogosphere. Looking at TailRank's Alexa numbers, it looks like the honeymoon is over and it is going to be interesting to see how Kevin transitions it from the next new thing to a major player in the whatever-this-space-is-called space.
A similar decline can be seen in memorandum's reach stats - what does this suggest for the space?
Note that digg.com does not have the recent decline that these two sites show.