Wasn't Expecting That... (Possible Spoilers)

[Serena]

On a side note, why do people use Skype when you have ventrillo and teamspeak?

Because you can talk to an individual without the need of finding a hosted server that will permit you and your friend to even hang out there.

For example the guild I'm with in the MMO I play uses vent, but my friends outside the guild I must use skype to verbally chat with.

Unless you're hosting your own public vent server, skype is far more convenient for 1 on 1 chat.