Don't worry, kids because you can send postcards to your friends with the following links:
1.- Kids' Turn Central with beautiful e-cards: Free Valentine Postcards
2.- 101 e-greetings. Send a greeting, send an ecard to someone you love : Valentine's e-greetings (some of them are animated!)
3.- Romantic e-cards.com . Click here.
4.- Say it with music! : TALKING E-CARDS With sound!!!
5.- ... and much more HERE