I worded that badly, I realize kano and slush are open to the public, "I currently mine kano" . I know there are private pools out there, I was wondering if they had any benefit over public pools like Kano and slush.
Private pools usually refer to pools that ASIC Miner Hardware Manufactures run with large amounts of ASIC hardware of their own. So their private pool benefits them by keeping all of the reward. An individual cannot join those private pools.