Nagle and Delayed Acks

http://en.wikipedia.org/wiki/Nagle's_algorithm

http://www.stuartcheshire.org/papers/NagleDelayedAck/

http://www.cs.nyu.edu/artg/research/speedingTCP/buff_goldberg_speeding_up_TCP.doc

http://www.evilware.com/201001011017/Evolve/windows-7-and-windows-vista-network-performance-tweaks.html