frox - 7:00 pm on Apr 8, 2005 (gmt 0)

Got a few questions in PM, am replying here..

To sum it up:

1) your html has a referrer
2) your html incorporates the adsense javascript, that sees the referrer
3) the adsense javascript reads the referrer and then
4) calls another javascript at [pagead2.g...] o o g l e s y n d i c a t i o n.com/pagead/ads (see line 115) passing (between other info the referrer)

So there is no doubt: Google is collecting your referrers, and if they collect them they will certainly do something with it :-)

For a simple example, having the referrers of your page is a STRONG tool to analyze click frauds, as the referrers of valid clicks will certainly have some characteristics that fraudulent clicks do not have :-)