I have 3 desktop computers I'm not using at the moment, 1 was build for gaming so is pretty good the others work fine aswell, I already thought of something like bitcoin mining but electricity costs will be way more then I'll get from the mining (and the graphic card will die with in days probably). I have also thought of botting games for ingame currency and then sell it on forums or playerauctions (a website for gamers to trade money to ingame money with others), I used to do this when I was younger and make around 10$ a week , lol. But I don't think this will make me alot of profit either. Someone has any idea what I can do? I'm willing to leave them on 24/7.