I am not a fan of Technorati, it is too 'busy'. The search results were different when searching in blogs, tags, and the directory. I found this out when I looked at it before when I was searching for something else.
It is amazing how many blogs are out there, how much time people devote to reading them, posting to them, creating them, and commenting on the posts. I just do not have the time to sit and create posts to my blog, read the tons that are out there, and comment on them.