Hi. I guess this isn't really relevant for most of us but it is interesting to see where trading is heading. It is becoming more computerised and automated and access to information is vital. Cannot help but feel that is somewhat unfair. I guess this article refers to level 2 data and using very fast computerised 'algos' to buy and sell before the rest of the traders can get a turn to do that or I may be wrong.
http://www.nytimes.com/2009/07/24/business/24trading.html?_r=1
http://www.nytimes.com/2009/07/24/business/24trading.html?_r=1