Here is the browser market share for September 2008, based on traffic to my top site:
Google Chrome: 3.21%
The big news in September was the release of Google Chrome. From the table above, we see that Google Chrome ate into both IE’s and Firefox’s market (IE’s share decreased by 1.79% from August to September, while Firefox’s share decreased by 1.25% during the same time period). However, Google Chrome actually lost ground since the first few days, when its share reached high 3′s. So, early returns seem to indicate that Google Chrome isn’t making much impact to the browser world, at least at this early stage.