Blog Universe - Searchable directory of weblogs categorized by theme.

Blogarama - A more-or-less daily dose of news, politics, techmology, and any random thoughts that pass.

Blogdex - Blogdex is a research project of the MIT Media Laboratory tracking the diffusion of information through the weblog community. Ideas can have very similar properties to a disease, spreading through the population like wildfire. The goal of Blogdex is to explore what it is about information, people, and their relationships that allows for this contagious media.

Blogdigger - A solid blog search engine that also gives you the option to search for local blogs.

BlogHop - A weblog portal for weblogs. Come visit to find thousands of great blogs. View by rating or freshness

BlogLines - FREE online service for searching, subscribing, creating and sharing news feeds, blogs and rich web content.

BlogPulse - a dream of a blog search engine. Includes really cool BlogPulse user tools such as Trend Search and Conversation Tracker.

BlogSearchEngine - The Blog Search Engine is a web search resource for finding weblogs and moblogs. Search for blogs of all kinds.

BlogStreet- Blog Profiles, RSS Ecosystem, Blog Tops, Search and Directory.

Blogwise - Find interesting, relevant blogs quickly and easily, primarily in the UK, but now there are ten local editions of Blogwise listing blogs & search results for particular countries.

Bloogz - Blog search engine where you can take a look at which blogs are the most popular at the moment.

Daypop - Daypop is a unique search engine, for a number of reasons. It's primary focus is on weblogs, news sites and other sources for current events and breaking news.

Feedster - The fast search engine for RSS content including weblogs, now with myFeedster, your custom web-based newsreader.

Globe of Blogs - directory of blogs organized by title, topic, and author name, age, gender, birthday, and location.

Google Blog Search - Google's new blog search engine.

IceRocket - Excellent blog search engine that includes the option to search by link.

LJSeek - A search engine dedicated to only sifting through the LiveJournal blogging community.

PubSub - A matching service that instantly notifies you when new content is created that matches your subscription." PubSub searches blogs and is technically not a blog search engine, but since it does search blogs I included it here.

Technorati - Currently the web's biggest and best blog search engine after which Google's new blog search engine is being designed.

Weblogs - Antique coins, stamps, baseball cards, tokens and metals, currency and comic books.