I asked this question recently. After a long and exhausting search for the cryptocurrency. I found it. It Musicoin, Spreadcoin. These are the forks that generate revenue and not lose interest while the majority of the citizens of the Internet. They are young and just beginning their long road. But now we see how they struggle for "a place under the sun."So not a lot of statistics: Musicoin the complexity of the bench is not great. what Melnitsa 100 MH/s = 1000 coins a day. Value from 0.00001 - 0,000013. Which equals to 0.012 BTC. Go ahead Spreadcoin, the coins per block give a 6.66 - 4,25. A day at the same speed of the miner can be mined from 500 - 2000 coins. The cost of this coin in the market 0,00035 full - of 0.0005. Which equals, on average, 0,525 BTC. I think good arithmetic, which can bring income to any miner. The only difference between these coins from each other: Musicoin manitsa at the pool when Spreadcoin solo.