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Check out Gridcoin. You won't get rich but you can make money with CPUs - it also can be set to only run when computer isn't in use so probably good for a cyber cafe. Your clients won't notice any slowdown and you make some money when computer is not in use. It also contributes to science/math research so you get to do some good too.

great article.thanks.I have followed you.you follow me.
@lovelu3650

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