PayPal allows you to securely send money to any email user in the U.S. After signing up, you simply enter the recipient's email address and a dollar amount. The money is charged to your credit card, and sent to the recipient. The transaction takes seconds to complete and the service is absolutely free. To learn more about PayPal and its detail, please follow the link above to their web site.
Following the suggestions of many of our requestors, we've signed up for PayPal and have started offering it as an optional form of payment. We've looked into web based credit card services, and PayPal is by far the most popular and reliable one. We've experimented sending and receiving payments with PayPal, and so far our experience has been hassle free. If we run into any problems in the future, we'll certainly post our experiences here.