Yep, these prices are just getting nasty ugly low. That being said, something very odd, likes screwy flat-line stats, is going on with Middlecoin, and horrifically low revenue under 0.005 BTC/MH/Day, depending on what miner samples you look at.
http://www.middlecoin.com/What else did you expect; mining will not be much profitable anymore, some serious ASIC machines will be needed and decent hashrate to get decent amount of coins out of it. I am surprised it even lasted so long.