DisplayFusion - DisplayFusion will make your multi-monitor life much easier.
LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
Preme for Windows - Speeds up your window switching.
MyChat - Secure instant messenger for any network
GridMove - GridMove - A window management tool that can quickly arrange your windows into desktop grids.
BORGChat - BORGChat is a LAN messaging software program.