Is there a website that allows others to give money for a couple who is celebrating their anniversary?
No, unless the couple start their own website. Some young people
who are getting married may have a website you can go too (written
on their wedding invitations) for gift giving. The most personal
way to give a couple money for their anniversary is send a nice
card and a Money Order (NEVER CASH OR CHECK. Put it in both their
married names even though they may not be married yet. Example:
Jack and Tracy Kindell