I wonder what the time span of most of these programs are before they go belly up, is it 6 months, 12 months or a little more? I mean, I haven't got 30 bitcoin spare or indeed 1 bitcoin to put into them lol, but someone's making money from these and not just the owners of the sites. I guess if you have a ton of money to throw at it in the short term it could be profitable, but extremely risky unless you happen to get your seed money back, after that you won't really care of course, it's all free money then.