E-Greeting Cards and Postcards: Birthday Cards, Get Well Cards, Christmas Cards, Mother's Day Cards, Love & Romance Cards...

NiceCards.com
This is one of my favorite greeting card sites because it's so easy to send and receive cards. There are special birthday cards, christmas cards, and e-greeting cards for all the major holidays.

1001 Postcards
A great greeting cards site that offers every conceivable topic, as well as birthday cards, christmas cards, animals, nature, etc,. Some of the postcards are animated and others are even interactive! There are also cartoon postcards, including The Simpsons, South Park, and Peanuts.

E-Cards
Electronic postcards with an environmental theme. Every greeting card sent results in a donation to the World Wildlife Fund and the cards are very nice and easy to send and retrieve. You can send animated postcards and even video postcards that update automatically.

123 Greetings
A very nice setup with postcards for upcoming holidays and their top ten greeting cards make this free greeting cards site one of the best.

PC Greetings
PC greetings offers free greeting cards that are very nice, and easy to send and retrieve. There are postcards of animals, nature, holidays, flowers, and special events such as anniversary, birthdays, weddings, sympathy, christmas, etc.

Free Greeting Cards and Postcards
This site allows you to easily send free electronic postcards and greeting cards with a wide variety of topics...birthday cards, christmas cards, and my favorite, postcards from Hawaii.

Mail a meal
mmmm...mail a tasty greeting card with a picture of desserts, snacks, cocktails, fruit, ice cream, etc. The cards are very simple to send and retrieve.

Suite Sentiments
This is not the best place to go if you just want to send a simple greeting card to a friend. There are too many choices and options, and when you go to retrieve a card there is just a small link in the bottom left corner of the Market Suite Mall. The postcards are pretty nice though and there are a lot of pictures to choose from.

Awesome Cybercards
This site is a little odd, but the cards are free and quite nice, with a good selection.

Hallmark
The hallmark connections shop offers a good selection of free electronic greeting cards plus animated cards for a fee. However I don't recommend hallmark because they insist that you provide extensive personal information just to send a free postcard, they use a shopping cart on a secure server even for the free cards. The process took many times longer than it should have, and in the end I couldn't send the card because of an error on their server. Do yourself a favor...skip hallmark connections.