Happily Google know very little about me (which is comforting given their reputation). But then I only ever login for gmail, I never stay logged into Google for search etc
Love one of the posts in the Register's comments section:
Apparently in 2007 I created a calendar entry called "c**t" and "jkhkdgfhdkg" and claimed to be a man-whore living in France. As both were done in the early hours, I can only presume I was pished at the time