Although somewhat unsure of what exactly it is, I have joined Technorati, driven insane with jealousy (and incredulity) by LM's top listing there under "climate": http://technorati.com/blogs/climate. Although it looks to me that there is no assessment of quality in their ranking.
So this is an experiment, this post is supposed to be tagged as: climate.
[Update: RC now includes "climate" (it was just "climate science") in its tags, and now stomps Lubos into second place. I'm in fourth... come on folks, link to me and put me into second!]