The South African Blogosphere provides a searchable database, charts, directories and more.
A database of blogs, but also provides a free service for subscribing to blogs.
BlogScope is part of a University of Toronto research project tracking over 35.55 million blogs with a total of over 760.77 million posts. BlogScope serves as an analysis and visualization tool providing a variety of charts, graphs, and widgets in order to better understand and view the blogosphere. You can also search for blogs by using search terms, and then can narrow the results to items such as photographs.
Google's search engine for blogs. It includes blogs from hostsites besides Blogger and in multiple languages. Provides a sidebar to browse by topic.
Search engine for blogs, twitter, myspace, images and more.
A selective list of blogs on a variety of topics such as technology, food, travel, history, business, etc. The sites are chosen by several university and college library and information science programs.
An index of blog topics and sites chosen by librarians.
Technorati claims to be the leading blog search engine and most comprehensive information source with more than 1.5 million new blog posts indexed in real time. “If Google is the Web’s reference library, Technorati is becoming its coffee house.” Time Magazine
A list of several additional blog search engines.