In case you ever wondered what are the most popular blogs based on the RSS subscriber count, check out RatingBurner. It ranks blogs according to their subscriber count. Additionally you can see Google Pagerank, daily fluctuations in subscriber counts, last update date and some more info. Blogs can be also sorted by each of these factors and filtered further by keyword.

Features:
Check out RatingBurner @ www.ratingburner.com
Tags: blog tools, stats | Categories: Stats / Trends
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Thank you very much for reviewing Rating Burner! In addition to your review I would like to mention a “map of blogosphere” that shows how top 300 blogs links to each other. Also Rating Burner have a “smart” button that anyone can place at blog homepage. When this button clicked from the blog, visitor will be redirected directly to the place where this blog is listed in rating.
[...] (8) RatingBurner - In case you ever wondered what are the most popular blogs on the web, check out RatingBurner. It ranks blogs based on the Feedburner subscriber counts. Read more: RatingBurner - Discover Most Popular Blogs on the Web. [...]