Google Tutor listed five tools that help you compare the Google Caffeine index to the current Google index. I figured I would list six here:
- facesaerch.com/caffeine/
- Google Caffeine Bookmarklet
- Plug Caffeine into FireFox Search Bar
- Caffeine Ranking Checker
- cartercole.com/googlevsgoogle.html
- comparecaffeine.com/
Forum discussion at Sphinn.