Tired of sharing a single bathroom with his teenage son, Sean Rosas hatched a plan. But ... renovating their broken-down bathroom ... would cost more than what Rosas, the director of volunteer services at a nonprofit, had on hand. That's when Rosas, 43, stumbled on Lending Club, a website that matches borrowers directly with individual lenders. If you need a loan, the site pulls up your credit score, vets your application within minutes and assigns an interest rate. If enough people sign up to lend, you can get the money in days. More than 250 people chose to back Rosas, giving him a three-year, $16,000 loan at 8.9% annual interest. Rosas, who has made every monthly payment so far, is thrilled with his deal. It was a much more human experience than if I had gone to a faceless bank," he says. Peer-to-peer has grown partly as a response to the recession; when credit was tight, traditional banks pulled back on lending, and consumers needed alternatives. Compared with a traditional loan application, Lending Club is blissfully easy. To qualify, borrowers need only an active bank account, a minimum FICO credit score of 660 ... and at least three years of credit history. What lenders are really doing is investing: they're putting their money in notes backed by the prospective repayment of loans. The sizes of the loans range from $1,000 to $35,000. Investors can buy notes in increments as small as $25. Since its founding in 2006, Lending Club has delivered investors an average annual return of 7.79%-appealing at a time when three-year Treasury bonds average 1%.