Here they are...

Audiocard--this is the best web card place around! Sound, animated pictures, songs...
Very costumizable cards...
Looney Tunes Webcards!
Cartoon postcards
Send a Budweiser beer to a friend!
WebCards- 5 categories
Send a Virtual Shiner Bock beer to a friend
The Electric Postcard
Victorian Cat Card Shop
Send a postcard from Hawaii!
Send a Virtual Vacation
Seattle Square Postcards
Prince Edward Island Greeting Cards
Greeting Cards-great stuff
Gund's Postcards
Internet Card Central Postcards and Flowers
The E-Kissing Booth
Did you sign my guestbook yet? Then do it now!! :)