123Cards - Free greeting for all occassions. (**)

123Greetings - Free greetings for every occassion imagineable. (***)

American Greetings - Online email greeting service. (***)

Barnes & Noble -

Blue Mountain Arts' Electronic Greeting Cards - Send Blue Mountain Arts' personalized electronic greeting cards by e-mail.

Egreetings - Digital greetings and gifts. (**)

Evite.com - Organize events or group activities and send out electronic invitations.

Hallmark.com - Large amount of ecards to choose from. Select one for every holiday. (****)

HiCards - Lots of cards to choose from. Cards for every holiday and daily jokes. (***)

MoMA -Send e-cards from MoMA's collection of artwork.

MP3.com - Send a music greeting. Select an MP3 and a picture and send.

Net Greeting - Send email greetings. (*)

PigPig -

Shared Greetings - Send a free ecard from a variety of categories which includes a chance to win 2 prizes of your choice. (***)

Shockwave - Send animated Flash and Shockwave cards. (****)

the Greeting Card - Send cards from an enormous selection of categories. (***)

Visualize - Send ArtMail for free from this art oriented site. (***)

Wotch - Mini cards for a variety of occassions with customizable messages.

Ynot - 15 categories, either animated or still. (***)