Being Prosperous

Here's something I don't think I've seen before. Prosper.com lets users borrow and lend money through the Internet. It could be a good way for those in debt with high interest loans to borrow money at a lower rate and pay them off. There doesn't seem to be any danger for borrowers except for the downside of having to accept a high interest rate in order to get people to lend to you. Being a lender seems rather risky and not worth the trouble. Splitting up your money between a few different loans would mitigate the risk of someone defaulting, but the rate at which you earn interest just doesn't seem to make up for the risk. If anyone has any experience, please post in the comments. I'll be looking into this further to see what some others have to say.