If you're one of the people who prefers to disallow Technorati's bot, which does not respect the robots.txt convention and it's directives (talk about a good net citizen...), you may have resorted to blocking the bot's IP, 18.104.22.168.
As of today, Technorati has changed the originating IP of its crawler to 22.214.171.124.
Update your block-lists accordingly. ;)
(I don't currently block TR myself. I enjoy the blog-ego hand-job it provides... when it works. ;)