Free Remote Desktop, Web Conferencing & Online Meetings - great tool for sharing desktops. I'll be using it for desktop support, but it would also be cool to use
The two I'm especially interested in are BigMarker and JoinMe. JoinMe is a good way to share screens and to actually work on someone else's computer. BigMarker gives the ability to do voice/video conferencing. Richard Byrne suggests using it to provide online tutoring, brainstorming sessions, and other online presentations. You can have a public or private meeting room, can share screens, and it comes with a white board you & others can draw on. I saw something that indicated you could upload docs & share those, as well. Lots to consider trying.
What it is: Join Me is an incredibly simple way to share your computer screen with others. It works on both Windows and Mac allowing you to share your screen (and whatever is on it instantly). The simplicity of this site is brilliant. If you have even a sparkle of being a "techie" among family, colleagues, or friends, you most likely get regular phone calls asking for your help with something. The problem: those asking the question don't usually know enough to accurately articulate what their hang up is. Join Me is a simple solution, it lets you share screens so that you can see what the problem is and walk them step by step through the solution. Join Me is also great for the classroom, it lets students and teachers quickly share their screens for instant collaboration, feedback, or virtual meetings.