Peer-to-peer (P2P) lending isn’t really anything new. But it isn’t that old either. It took a serious hold in the mid 2000s and has enjoyed increasing popularity ever since. Now it’s experiencing another serious bump in attention as institutional investors start adding P2P loans to their portfolios. But what exactly is P2P lending? Who participates? Why is it “taking the internet by storm”? These questions and more are explored below.