I was just wondering if these systems still existed, or if competition has squeezed them all out. I know in 2004-2005 it was like shooting fish in a barrel, but now the game is much different. Do they still exist? I heard of Tradebot doing short term automation, but given the automated competition out there, do these liquidity adding systems still exist? I am speaking of being a liquidity adder and making money net SEC fee/commish/Rebate Thanks