http://www.gotomypc.com/
I have tried ever other available option – There are plenty of free options for a PC, crossloop, Netmeeting, etc – but absolutely nothing comes close to GoToMyPc. Take my word for it. $15 per month to stop an important client throwing his macbook out the window.
iChat screen sharing has never worked for me, Crossloop for mac is far too slow, and BOMGAR wanted about $5000 for their ‘service’.
GoToMyPc is worth it’s weight in gold, just forget about the crappy TV ads with pidgeons.
