eval.google.com some speculations
Henk van Hess seems to have discovered a secret evaluation subdomain, where selected people hired by google would fill direct feedback on query strings in order to improve the algo.
"The site reveals itself only if you have the proper login and if you use a network known by Google. Residues of Eval.google are found on the web, but the full content of the mystery site has never been published before. Here it is: the real story about Eval.Google."
This sounds great considering the whole Google culture of geekness and secrets. It's 90% a hoax, but in case it isn't it is an interesting read:
