tag of your website:
Collaboratively (even co-edit) share choice Gmail Contacts, Android Contacts, Google Contacts. You choose who can view (or update) contacts that you decide to share. Two steps: In Google Contacts, assign contacts to a Google Contacts label. In CoContacts, offer people access to share that label. Are you using Google Apps? You're in luck. CoContacts integrates seamlessly, including syncing your Google Apps Directory.