More on Blogs:
Blogdex is a research project of the MIT Media Laboratory. It crawls all of the weblogs in its database everytime they are updated.
Ring Surf . This net ring helps you to find sites with related subjects.
Blogrunner is a portal for blog content. It has an index and entries are grouped together according to topics and news stories.
Google also has a searchable weblog directory
Technorati is another blog searcher that also allows you to trace who's linked to a particular blog. In addition, Techorati tracks the number of blogs linked to a blog.