Perseus Blog Survey - The Blogging Geyser: 31.6 Million Hosted Blogs, Growing To 53.4 Million By Year End. 4/8/2005 - Perseus randomly surveyed 10,000 blogs on twenty leading blog-hosting services to expand its model of blog populations, first documented in The Blogging Iceberg . Based on this research, Perseus estimates that 31.6 million blogs have been created on services such as BlogSpot, LiveJournal, Xanga and MSN Spaces, with 10 million created in the first quarter of 2005 alone. (Read more)

Perseus Blog Survey - The Blogging Iceberg - Of 4.12 Million Hosted Weblogs, Most Little Seen, Quickly Abandoned - Perseus Development Corp. randomly surveyed 3,634 blogs on eight leading blog-hosting services to develop a model of blog populations. Based on this research, Perseus estimates that 4.12 million blogs have been created on these services: Blog-City, BlogSpot, Diaryland, LiveJournal, Pitas, TypePad, Weblogger and Xanga. (read more)

Pew Internet & American Life Project - Bloggers: A portrait of the internet's new storytellers - 'Despite a potentially vast audience in cyberspace, the Pew project found that 52 percent of bloggers said they blogged mostly for themselves. When asked for a major reason for blogging, 52 percent said it was to express themselves creatively and 50 percent said it was to document and share personal experiences. Chris Anderson, the editor in chief of Wired, a magazine about technology and culture, said the Pew report was accurate. “The finding that jumped out at me was the recognition that people are talking about the subjects that matter in their personal lives,” he said. Mr. Anderson, the author of the book “The Long Tail: Why the Future of Business Is Selling Less of More” (Hyperion), said that the Pew report shows how the blogosphere is unlike traditional media. “It's narrow, niche subjects,” he said. “It's a granularity of media that we in the commercial media could not scale down to. Niche media is ‘me' media, and the blogosphere is the ultimate manifestation of that.” (Read the NYTIMES article or access the survey on the PEW website)