Don't care about Bing? Your loss mate. I used to have the same blase attitude about any other search engine other than my love child, Google. I mean, with a previous 92% search market share, what was the point of caring about anything apart from the Google juggernaut? 

Figures released this month report some stagging changes in the search landscape. No longer is Google the run away winner in the battle for who owns the internet, Bing is catching, and getting close!

"According to the latest data from Experian Hitwise, Google was responsible for 64.42% of searches in the U.S. in March, 2011. Bing-powered search — which includes both search.yahoo.com and bing.com — accounted for 30% of U.S. searches."

Google still clearly leads Bing more than 2 to 1. But when you consider that that ratio was 3 to 1 last fall, the gap appears to be closing. Bing is growing by five or six percent each month, whereas Google is losing two to three percent. 

Google is still int he commanding position, and leads Bing 2 to 1, but the gap is quickly closing. Bing is growing by five to six percent each month, whereas Google is losing its lead by two to three percent.

"The fact that Bing has crossed the 30% mark in the U.S. is significant in and of itself. Looking back through Experian Hitwise's archives underscores the tremendous amount of growth for Bing-powered search. The rate of growth appears to be increasing."

So should we all be worrying and completely changing the way we market our websites and our business? Not really, but be aware, thats there are other ways to get traffic to your website, its not all about Google. Bing and Yahoo both offer PPC options, as well as some healthy Organic search traffic, which will only get bigger. Bing, you have my attention.

Original article and chart: http://mashable.com/2011/04/11/bing-search-growth/