Skype is what I use for face to face comms. I run a teamspeak server, but I use ventrillo far more for simple voice comms. I'd never heard of ooVoo before this post.
:shrug: Been on tv commercials for weeks. It's really being promoted. Seems it's biggest claim is the ability to tie multiple (up to 5) participants together very well, and it's all free, where Skype and others charge for multi users.
