A guy I know actually runs the site, so I know its legit. I haven't used instant profits, but I think it's the same type of deal. You can do surveys and register on random sites and such for money, and if you sign up for trial offers with a CC you can get paid much more. Personally, I don't have a CC, so I just do the cheaper options.
I've racked up ~$50 so far doing just the free things. Of course, in these type of things, some offers you do won't approve, it's just the nature of these things. A lot do though. I'd make a new email for doing this, some things require you to confirm registration and you'll get a lottttt of spam emails. A little fairy tells me you can use fake info on most the surveys as long as you use a real address somewhere.
If you refer someone, whatever they make, you get 10% of it. They still get the same amount of money, so it's a win win. You can also buy upgrades with swatcash (read the FAQ on the site) and get a higher percentage of what they make, I'm at 16% right now.
Please sign up under me if you decide to do it