I have a program that gathers information from referring urls. Today i noticed that if you are logged in to google and perform a search, the “q=” is empty when it comes through.
Example:
logged in: http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&ved=0CIQBEBYwATgK
not logged in: http://www.google.com/url?sa=t&rct=j&q=live%20chat&source=web&ved=0CFkQFjABOAo
Is there a setting in the persons google account that disables this, or a google service that i can query for the keywords?
This is likely what you are looking for, though you may have found the answer already. Check the Google Blog