A while ago I started writing my Greasemonkey script to detect statistics programs, this script has been evolving since, and now has gotten it’s own page, so check out the Greasemonkey statistics detector.
If you find any statistics programs it doesn’t recognize, please do let me know so I can update it.
Update: I added another 4 stats programs, update to version 1.1 of the script :)

I’ve downloaded and installed your statistics detector but I cannot seem to figure out how to use it. Can you post some basic instructions?
Thank you in advance.