Marcia - 8:08 pm on Oct 1, 2004 (gmt 0)

There is no "scientific" proof possible; aside from which, most people who run extensive controlled testing on huge amounts of data, which some certainly do, while it's as scientific as it can get, tend keep their findings to themselves as trade secrets.

>>Adsense provides the final proof.

It certainly provides the motivation to flood the index with swill. ;)

BTW, is anyone else seeing "sandboxed" sites showing up in the backlinks for a site they link to?