Bing has 14.7% Search share now (up 0.3 % m-on-m)

Bing + Yahoo combined are up 0.5%. 

comScore Releases August 2011 U.S. Search Engine Rankings

Google Sites led the U.S. explicit core search market in August with 64.8 percent market share, followed by Yahoo! Sites with 16.3 percent (up 0.2 percentage points) and Microsoft Sites with 14.7 percent (up 0.3 percentage points). Ask Network accounted for 3.0 percent of explicit core searches (up 0.1 percentage points), followed by AOL, Inc. with 1.3 percent.