123 Greetings: Ecards affiliate program for webmasters. Service includes hosting the card pages, providing the programming and offers a custom content feature.
Electronic Greetings: Offers a template-driven solution for e-greetings.
GreetSomeone.com: Offers customized greeting card pages.
Kangaroo Cards: A free hosted e-card resource for webmasters. Choose from a collection of public cards or create and upload original designs.
Novabuilder: An electronic postcard system that online marketers can use to add the power of viral marketing.