Google Launches Blog Search
Unlike Technorati, which tracks hot topics, the Google search engine ranks blog articles by relevance. The FAQ says that if your blogging software pings weblogs.com, Google will see it. (Here are sample searches for LAist and Katrina).
This is one of the only search engines that focuses solely on indexing blogs. Despite speculation and discussion, at this time Google isn't saying how this will affect blog rankings in its regular engine.