You haven't read the various concerns about Google and privacy, then? If you use Google and Gmail, and allow cookies, there's a fair bet that they can easily database you. After all, databasing is their business.
We're quickly headed off-topic, but what makes you think Yahoo, MSN, et al aren't doing the same thing? I'm better off in Google's database than some others that I'm entered in... (Adobe, M$, etc.). ECHELON. Chris
