Yes, I just posted this on Brandflakes as well, but it's just too good not to share everywhere. The Google Alarm Firefox addon will visually and audibly alert you to when your personal information is being sent to Google servers, which is practically all the time. If you weren't paranoid before this, you will be after using it for ten minutes. Heck, even I've gotten dressed and stopped picking my nose in front of the iSight.
Here's your homework kids - install it, then take a walk around the web and your usual suspects, twitter, vimeo, wherever. Then come here and enjoy the silence. This is the best way I've found to explain my aversion to embedding youtube films. Do you get it now?