If you or your company is looking for a way to do "collaboration" (e.g., Web Conference) over the web or simple desktop sharing, but cannot afford enterprise solutions like LiveMeeting or WebEx, you might want to try out this great little tool by the Microsoft Live team called "Microsoft SharedView". It's a very nice, fast and high-res solution for doing desktop sharing, web conferencing, showing demonstrations, etc.
It's in Beta right now, but seems to run pretty smoothly in my limited testing.
You can download it here: http://get.live.com/betas/sharedview_betas
~ Robert Shelton