There are many reasons why a person might want to send an anonymous e-card. Perhaps you have a secret crush, maybe you have a difficult message to deliver, or maybe there's just something you'd prefer to say anonymously. No matter the reason, it's quite easy to send an anonymous e-card once you locate a service that allows for it.
Find a service that allows you to send anonymous e-cards. Christianet, SecreteCards and Anonmyous Hints provide this service.
Choose a card. Look through the e-cards that are offered and choose the one you want to send.
Enter the required information. If you want to add a custom message, enter it in the designated area, if provided. Enter the recipient's e-mail address and the captcha anti-spam code if required. Hit "send," and your anonymous e-card will be sent.
Don't send anything threatening or otherwise inappropriate. Though you are sending it anonymously, your IP address can always be tracked if legally necessary.