Nymgo is a VOIP provider based in the UK, but they provide service for customers world-wide. You simply download their software, then you can use your computer to make calls for less than a penny per minute. You can call within the US, or from anywhere to the US, for $0.008/minute. Nymgo provides service to many other countries around the world with similar very low rates. The best part about service from Nymgo is there are no hidden charges – no sign-up fees, taxes, or monthly service charges. It’s pay-as-you-go; you pay only for the minutes you talk and nothing else. (Call times will be rounded up to the next full minute.) You’ll need Windows 98/2000/XP/Vista and certain other hardware requirements. Learn more at the Nymgo website.