Here is the browser market share for December 2008, based on traffic to my top site:
Google Chrome: 3.50%
In December, Chrome, Opera, and IE all saw small gains, mostly at the expense of Firefox. This is the first time since September that Firefox lost market share. Google Chrome appears to be pretty firmly entrenched as the #3 browser on the market. Its market share, though, is still less than 10% of either of the top two.