I came up on this site yesterday while checking out some podcasts: Technorati Search. It's a search engine for blogs. No big deal, but what's really cool (for blog writers, at least) is that you can search for blogs that refer to a link. In the "website URL search" section, type in the URL of your blog and bam! you get a list of everyone that refered to you. Pretty neat.
They already index the major blog sites, like MSN Spaces and Blogger, but you can also have them "ping" your site to get it indexed. All you have to do, it seems, is add a couple of tags in your page. Since I'm hosting my blog (instead of using a service), I'm not automatically indexed and I haven't tried adding their tags, but it seems simple enough.
If you have a blog, that site is worth checking out. If only for the fun factor of the first ten minutes.
