GroupCard Apps
groupcardapps.com
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
GroupCard is the world's leading provider of collaborative greetings and gifting. When Grandma's 100th birthday comes around and you want the whole extended family to sign a special card, there's no better service for you. And everyone can chip in to a gift card for the recipient which can turn many smaller contributions into one really great gift!