Saw a recommendation on a different thread for h t t p : / / g o o g l e s h a r i n g . n e t, which appears to be a free Mozilla plug-in that keeps Google from tracking your browsing, logins, activity, etc. Has anyone had any experience with this plug-in? Does it work? Any better solutions/alternatives out there? I'm going to be doing a lot of work at Google Places with multiple accounts and don't want G tracking my movement. I also wonder if this plug-in blocks Google from seeing my MAC address...any ideas?