Long awaited Google Knol has been launched last month, since then there is some controversy about the feasibility of Knol in the presence of other successful knowledge base websites like About.com and Wikipedia. There has also been speculation about Google Knol that it would prove to be Wikipedia Killer. Google has defined Knol as a unit of knowledge saying that Knol’s objective is to be source of basic knowledge for anything that anyone search for on the internet. Many webmasters are worried that Knol would get top ranking for major keywords, much like Wikipedia. Adam Ostrow at Mashable.com said in a post “each “Knol” is created by a single author, who can then choose to either accept or reject edits made by others in what Google is calling “moderated collaboration.” Beyond that, Knol authors can insert AdSense on their Knols and earn revenue based on clicks. In reality, this sounds a lot less like the community collaborating on authoritative articles (Wikipedia) and a lot more like a potential land grab to create content for lucrative keywords.”