Mark,

This one's a little goofy to apply, but if you do it, then your Google browsing is at least anonymous.

If you right click on this link (don't go there, just right click so you get the dialog box) and "save as favorite" then actually navigate to a Google page and pull up this favorite and click on it, it sets your google information to be anonymous. It becomes one of your Google preferences, but it so far doesn't seem to be savable from the list of Google preferences. If you actually click on the link it tells you you must be on a google page to click it.

SRS