I've googled old friends and ex boyfriends - it's actually fun to see where they are now.
I actually google myself every 6 months or so. Because of my business life, I am very active in a lot of different things and have met many people over the years. You never know where you are going to turn up. I actually found a post that was attributed to me as a referral to a person I had never been in business with before. I kindly wrote to their webmaster telling them that they had 72 hours to remove my name from their website or that I was going to begin a lawsuit against them - it only took 24 hours before the reference was down.
I take my business reputation very seriously and make sure that all that is there is truthful.
I actually also googled my sister once and found her almost $800 dollars that was owed to her by the state she used to live in. She thanked me profusely and told me that I just sent her son to camp for the summer. :)