Blue Mountain: Friendship ECards
Offers online cards and greetings featuring humor, forgiveness, and appreciation between friends.
http://www.bluemountain.com/category.pd?path=35078

123Greetings.com: Friendship
Heartwarming free friendship greeting cards.
http://www.123greetings.com/friendship

Egreetings.com: Friendship
Caring, inspirational, college, and gay and lesbian friendly wishes.
http://www.egreetings.com/category.pd?path=8030

Greet2k.com: Friendship Cards
Ecards proclaiming thoughts of friendship.
http://www.greet2k.com/friendship

Hi Greetings: Friendship ECards
Offers eCards to reach your friends with poetry, miss you, and let's get together messages.
http://www.higreetings.com/friendship