Do you currently pay for an online meeting solution such as WebEx? If so, the number of free competitors is growing rapidly, and many of them have most of the features of the higher end online meeting products. My latest favorite is Yuuguu which is available in a free beta version for Windows users, and there is a beta for Mac users.
Yuuguu is ideal for a group of web workers who collaborate all day with each other and want to be able to share each other’s desktops or meet online. It’s also very easy to use if you want a free way to remotely control a PC or Mac when you’re traveling.