With the exponential growth and improved efficiency of search engines such as Google and Yahoo, venues other than basic web pages need to be searched. Keeping this sentiment in mind, newer niche-based web search engines are being created such as Technorati, Icerocket, and Feedster. All three of the previously mentioned niche-based search engines search blog posts and soon enough the larger search engines will follow. As of now Google is one of the only major search engine that has a search tool that will hunt through blogs for searched topics. Yahoo and MSN surely will be soon to follow with tools to search blogs. Since blogs have become one of the up and coming forms of communicating it only makes sense that niche-based search engines and special tools to search them have been created. I feel that in the future, blogs will rise to the prestige of the regular web pages we have today. So instead of creating an additional tool to search blogs, the search engines will have to incorporate blog searches into their main search pages. As for now researchers will have see if the tool is used enough to be put into their main search pages.

http://www.informationweek.com/news/global-cio/showArticle.jhtml?articleID=170703345