Looking to find out what the strategy is behind the high frequency trading that goes on in Bitcoin marketplace like Mtgox (the ultra quick buying of many 0.01 BTC in succession)? Is it just to create a psychological impression that prices are going up and to trick people into buying in before the price explodes (because if you're looking at a site like bitcoinity or clarkmoody, it really does give you the impression that something huge is happening while in essence less than 1 BTC is being bought..
Or the tiny buys above the ask that push bid/ask up several dollars in the midst of large scale dumping. You'll see small .25 BTC buys that somehow counteract dumps of 100's of coins. It happens anytime BTC starts falling. You don't see it in reverse.