Have you ever heard of Teamspeak 2 RC2
 

Its a place where you can go and talk to people all over the world. Check it out. Its in real time with multiple people at once. ( related to learning a new language.)

Use it all the time when playing BF2 and Battlefeild Vietnam. It's one of the better ones out there.

TS2 and Ventrillo for playing World Of Warcraft

i prefer vent 8)