Dayon! is an open source remote desktop and assistance solution.
It is easy to use, secure, requires no registration and is free for personal and commercial use!
JetClass, Java net-class application, allows virtual lectures to be held by teachers and students located in front of their computers, somewhere around the globe. It's written in Pure Java, relying on CORBA for network communications.
A program that relays a stream of JPGs (simulating video) from a client to a server, and then replicates bandwidth on the server end, making the JPGs available via HTTP. Used when incoming connections aren't possible, ie. wifi hotspots w/ webcam.