Have you tried Blingo yet? It’s a new search engine that uses Google, but has a social networking factor built into it. You sign up for an account, and then have friends sign up for an account using you as a referral. As you do your normal searching with Blingo, winners are selected at random for prizes ranging from iTunes Gift Cards to Movie Tickets to iPods and Playstation Portables.

You can even add it to your Firefox search dropdown. Several of my friends have won gift cards and movie tickets. Greg Storey won a PSP. So what are you waiting for? Get a Blingo account and start searching!