I'd be careful investing in any bitcoin related product as they all come with risk to loss of principle. If you decide to take that risk here are some suggestions:
- You can convert to CLAMS and invest on Just Dice, I got pretty decent returns there for a while.
- BTCJam, I haven't used them in about a year but I was getting good returns by investing in A and B credit individuals.
Think to invest in a diverse field rather than in the same field. Also i would suggest you invest a minor portion of your total so as to have some cushioning in case of emergencies.
I use BTCjam now. They now have arbitration periods if the lenders default. They then send you a report including the name/address/identity of the user (all of the information they submit). I am still owed 0.0009 btc from a user. I have and like to use BTCjam a lot however, they have a 50000 satoshi fee which, I feel is too high!