dataguy - 5:07 pm on May 25, 2008 (gmt 0)

I receive 200-300 pageviews per day from a Mountainview Google IP address with a Firefox user agent string. This has been going on for a long time, probably a year. I assume this has something to do with quality control, but I know Google has at least one bot that identifies itself as a human web surfer.

I don't think this is unusual, you probably have nothing to be concerned with.