If you run a home-based business, there's a good chance you have to make long-distance calls to reach some of your clients. In the New York Times, David Pogue breaks down the best services for free long distance over the internet. His recommendations:

• T-Mobile
• Jajah
• Ooma
  As far as we can tell, Jajah looks the most legitimately free. (It appears to require no hardware or subscriptions.)