Is their money online? how much did you earn online and what site?

I think the one that makes the most sense mathematically is sports betting. With the appropriate knowledge on which bookies have what odds you can place "surebets". I mean betting on one side with one bookie and another side with another bookie that has a slightly different odds where no matter which team wins you will win slight a profit. (generally a few percentage points) Example: One bookie says the odds of X winning is 3.5:1 and another bookies says the odds of Y wins is 1.57:1 (notice they are two different bookies not the same bookkeeper as a single bookkeeper will balance their own books so this can't happen). By knowing how much to bet on each, in this case you bet 500; splitting 155 and 345 respectively, you would earn a 41.65 minimum (42.50 max). Foreign sportbooks won't allow you to bet if you live in the US however. Also you do need a decent amount of capital; recommended is 500. And since odds change, time is of the essence and you need to place bets as the arbs are identified and before the bets of others can alter them. I SAY that this makes the most sense because the math is simple but I have never tried it as I don't have the capital. That and finding the right arbs is... well there are a few sites that claim to do it but again, never tried it so...