Scarecrow - 7:42 am on Apr 1, 2004 (gmt 0)
You should delete your Google cookie before giving them your email address. That's the last piece of evidence they need to tie all your Google searches, your various IP addresses, and your browser, to you as an individual. Note that all this Gmail stuff is is on a subdomain, and yes, they are issuing a standard google.com cookie if you don't already have one. This happens by the time you get to the page where you hand over your email address. That means if you already have a Google cookie, they're grabbing it and associating it with your email address. Yes, that's the same cookie that expires in 2038 and has your unique ID in it.