If your blog has stopped appearing in Technorati’s directory, so you get
Sorry :~(
We’re sorry…we don’t have a blog by that name. If this is your blog, ping us so we can put it in our index!
when you search on a link like this – http://www.technorati.com/blogs/www.chrismerriman.com , as opposed to just searching via their search box, there may be light at the end of the tunnel.
If your blog hasn’t been flagged and deliberately removed from their directory, you can try turning off GZip compression.
The procedure for this depends on your blogging system, but for fellow WordPress users, all you need to is goto your dashboard, click on the Options link, click onto Reading, and untick the Use GZip box. Save, write a post as normal (assuming you do already have Technorati’s ping address in your list). You can also try a manual ping, by logging into Technorati and going to the My Account section.
If you use something other than WordPress, have a nose around your options, or failing that, there is a server-level mod you can make – see http://support.technorati.com/topic/411/
If it doesn’t work, my apologies for raising your hopes, but it has helped some people. I’m still waiting to see if it will sort this blog out or not…