lammert - 11:10 am on May 22, 2010 (gmt 0)
Tried the first search on https://www.google.com to go to one of my own pages. The referrer field sent with the HTTP request is blank. This is secure and protects the privacy of the surfer, but for a site owner it's very inconvenient. If a substantial group of people convert to the encrypted Google version, statistics won't be reliable anymore and keyword analysis of search engine referrer URLs will become useless.