Share contact group
My wife and I have shared calendar groups and reminders lists (both requires using icloud.com website) for things like travel, parties, and grocery list.
I would love to do the same with contact group, but can't figure out how.
As a workaround, we are using a shared iCloud account for (1) sharing contact groups, (2) Find My iPhone, and (3) app/music/video/book purchases.
If you have a Mac, open Address Book, select a group of contacts, and then click on the Export button in the menubar. Then export it as a vCard, and email it to anyone you want.