I started using Ventrilo while playing mmorpg's and ended up using it in my business for realtime voice collaboration among team members. More personal and mor

I started using Ventrilo while playing mmorpg's and ended up using it in my business for realtime voice collaboration among team members. More personal and more efficient than IM, it's like a group walkie talkie through your computer. Or a VOIP conference call that's always on. [ventrilo.com]