I wonder why nobody speaks about <a href="http://teamviewer.com" rel="nofollow">http://teamviewer.com</a>? I tried it and in deed just works like a charm. No need for any registration either, just download and run it directly. This took me something like 2 minutes to run it. You even not only share the screen but has also a full remote access. Yeah, it even works on any kind of OS (Win, Mac, Linux, Android, iOS).<p>What is so special about this new screen sharing startup which hasn't been solved already by other projects? I would even claim that Teamviewer does pretty much nails the problem of screen sharing.<p>[Disclaimer: I am not affiliated with teamviewer in any sense.]