Google and AOL are up while Yahoo!, Bing and Ask.com are down from November in Nielsen's December 2009 search rankings. But let's face it, AOL is fueled by Google, so pretty much all of the gains belong to Google.
When you compare year-over-year numbers, things are pretty much abysmal for everyone but Google, who gained, and Bing, which remained steady.
Here are the stats from November:
Here are the stats from December 2008.