NetImperative, the British e-marketing site, looks at the changes of Blogger, the blog subsidiary of Google and concludes that “Googles contextual ads may not be as useful as its search advertising, if the latest moves by the search giant are anything to go by.”

NetImperative refers to the recent move by Blogger to remove Google’s contextual ads appearing on the top of blogs hosted by its BlogSpot site, and to replace them with a regular Google search box.

According to Blogger which according to Nielsen//NetRatings had 4.4 million unique visitors in June alone, the Blogger navbar is a “more useful navigation tool” than the old Adwords ad block.