Blogarama is one of the largest free blog directories online. give your blog the attention it deserves and let people find and rate it in the blog.
Hot topics listing and search engine.A blog search engine and a “finger on the pulse” kind of deal; Blogdex is put together by MIT and is a service that “tracks the diffusion of information through the weblog community.”
Blogdigger is an RSS Search Engine. Blogdigger gathers information from syndicated content to offer services like full text search, media search link .
Blog tool provider, offers search as well
Search engine and directory listings of weblogs and tools.
Real-time blog search engine. Trends tracking.
Google Blog Search is relatively new to the world of blog search engines and at the time of this writing is still in beta. Doesn’t retrieve many results at this time and there are a lot of useability issues, but again, Google Blog Search is still just in beta.
Technorati is a blog search engine that is a real-time recorder of what is going on in the blogosphere.