I'm looking for resources on writing software to do WAN optimization. I've googled this and searched SO, but there doesn't seem to be much around. The only things I've found are high-level articles in tech magazines, and info for network admins on how to make use of existing WAN optimization products.
I'm looking for something on the techniques etc. used to write WAN optimization software. It seems to be a dark art, and the people who know how to do it, guard their secrets closely. Any suggestions?