if you have a "dial-up" connection, Skype will USE YOUR bandwidth and YOU WILL BE CHARGED by your ISP if they use more than your monthly allowance.
Clearly, if you have a DSL or cable connection and are online 24/7 then there will be no problem.
Skype: from FANTASTIC audio, VERY good video, file transfer, whiteboard, profile) ONE big problem with Skype: be warned!
IMHO, there are 6 kinds of people who do: Why do "mature adult" individuals make themselves out to be absolute idiots in public?
Do they think that their bad language, worse manners and terrible spelling/grammar will be taken as "funny" by everyone?
In these "rooms" you will see a lot of acronyms used; to decipher them you can visit: Results?
search Text=yw Another place you can find acronyms and more is at people have a decent "Profile" about themselves in these programs.
Do they simply assume that none of this could ever be held against them?