Calling Cards Home seems to be the best site that I found so far, providing calling cards and also long distance services.

They have several features that I like and that you can choose to use:
1) A long distance alternative - Enjoy Prepaid.It has the best rates on the market when calling long distance or worldwide.This is a product with a long series of enhancements: PIN free dialling, over 144 originations if you travel abroad, 24/7 customer service via phonecall or email support and many more. If you are interested, please check Enjoy Prepaid .

2) An alternative to Bigzoo - For all the former Bigzoo customers a new product was designed to suit their needs. Check out now the new Bigzoo alternative now!

3) A Best Rates section listing all the low rates offered to almoust every location in the world. Either you are calling your friend next door or across the globe you will find them excellent.

4) Free dialing instructions !

5) A complete and comprehensive FAQ - Calling Cards section that will help you choose the best option for you

Thank you!
Logan Xavier