I recently set up a google home page (igoogle.com).
After setting it up I noticed the 'Web History' link at the top of the page.
I looked at my web history and as near as I can tell, every google search I've done since January of 2006 is listed!

It seems odd to me that google would need to store search history like that. I can't find any way to clear it, anybody know if there is a way to clear that history out?