Search queries that engines like Yahoo’s rarely see can be problematic for the technology, and frustrating for the searcher who doesn’t receive a relevant response.
Spam Blogs Obscure Real Blogosphere
The total blogosphere has been doubling in size every five months or so for the past couple of years. That’s 80,000 new blogs set up everyday. IceRocket’s Mark Cuban questions in his blog, though, about how many of these blogs are legit and how to index them.