Yahoo is to make free PC-to-PC calls available to its users in 180 countries, in a system that is linked to existing Yahoo e-mail and instant messaging features. The new version of Yahoo's Messenger ...

Skype is riding a VOIP wave it helped create with free computer-to-computer calls, but it's far from being alone in the fast-growing industry Skype users in the U.S. and Canada can call free to ...