I use to use lendingclub and never had much luck with it. Many of the loans defaulted and now the platform is shutting down.
I have been using groundfloor.us with much better success. It is an interesting concept and I like the platform to date. They still need to enhance the product but the basic idea is solid. To date, I have had one loan default but they recovered all my money.
If you’re looking for a side platform to use, take a look.