Labier *did* have an online, ever changing order execution manual. It was called the "Tools of the Trade." But, it is gone now. My understanding is that the publisher of his "Nasdaq Traders Toolkit", a hardcover book on same topic, bought the rights to the web version as well, and then did exactly nothing with it. It is a shame, since that book was the best source of order execution info around. The hardcopy book IS a bit dated at this point. But it is still, imho, the best conceptual guide to execution. It conveys the correct mindset and tools you need to have to execute effectively in any situation... Wish the author would come out with an update.