- Blogdigger - RSS search engine, providing full-text search, as well as metadata search on RSS information. It has link search funtionality, as well as searching by date, topic, title and other fields.
- Daypop - Search thousands of news sites and weblogs from around the world.
- Technorati - Searches weblogs by keyword and for links. Also provides news from general news services and blogs.
- Feedster - Search engine for RSS feeds, which constantly monitors the world of blogs. Includes an image search.
- Ariadne - Weblog Search Engines - Phil Bradley looks at the developments occurring with weblogs and how to go about searching on or for them.
- Blogdex Search - Search the Blogdex database for words appearing in a referenced URL, or search for words or phrases appearing in a blog's description.
- Popdex - Search allows for finding words in news, referenced links, blog URLs or descriptions and also allows for finding all blogs pointing to a particular link.
- Blawg Search - Browse or search law-related blogs in a variety of ways.
- Boogieplay - Searchable aggregation of video and audio RSS feeds from various blogs.
- PubSub.com - Filter over one million weblogs and information streams to find content you're looking for, in real time.
- Postami blog tracking - Search blogs by keyword throughout the world.
- Waypath - Search link references, related books, related posts and web logs and individual web log posts.
- Deskfeeds - Search blogs and RSS feeds or browse by category.
- Feeds Farm - Provides article summaries and search results in numerous different syndication formats.
- Blawg Republic - Search engine and directory for law blogs. Provides full text search, RSS feeds, and top links in the blawg community.
- FeedBeagle.com - Customized news and feeds.
- Plazoo - RSS search engine for news and blogs. Allows users to create personal RSS feeds on merged feeds, search results, and personal interest profiles.
- FeedMiner - RSS and Atom feed search engine
- Read A Blog - View new additions, most popular, top searches and recently viewed.
- Google Blogsearch - The goal of Blog Search is to include every blog that publishes a site feed (either RSS or Atom).
- WSJ.com - New Search Engines Help Users Find Blogs - "The race is on to become the Google of blogs." A number of small companies are working to track weblogs and their posts in nearly real time.
- IceRocket Blog Search - Search can be restricted in several ways.
- BlogPulse - An automated trend discovery system for blogs. It analyzes and reports on daily activity in the blogosphere.
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