People rely more and more on search results to help build a picture of you and you want the picture to be a good one. You want search engine queries to direct to you and your accomplishments, not your virtual doppelgangers. If you have a name as common as my own, that could mean a sculptor, photographer, felon, aspiring actor, swimming champion, high school point guard, or any other number of people who share your name.
via lifehacker.com