
An interesting series of articles over at NewsFactor.com talks about the personal data that Google has access to, and where you might have concerns. It seems that we are quite trusting with online services.
Check out the articles here...
Part I
Part II
Part III
And, btw, what sort of information is stored in all those crazy urls that we pass back and forth to each other with things like session ids included... wouldn't those urls be another source of concern?