After Microsoft announced Bing a few months ago, it began increasing market share. However, its string of increases halted in September. Microsoft now has its work cut out for it to get more share.
One of Microsoft's biggest challenges will be what turns out to be one of Google's smartest moves - the Google search toolbar.
According to Nielsen, Microsoft's Bing dramatically increased its share of the search market in August, increasing over 22% compared to July. Moreover, it appears that Microsoft's gain was principally at Yahoo's expense.