For anyone with a simple use case (just let users login via Google), look at this module:

For anyone with a simple use case (just let users login via Google), look at the Google Identity Toolkit (GITkit) module:

This module allows users to login / register on a Drupal website using their Google login credentials via the Google Identity Toolkit API available on http://code.google.com/apis/identitytoolkit

For anyone with a simple use case (just let users login via Google), look at this module: http://drupal.org/project/gconnect

For anyone with a simple use case (just let users login via Google), look at this module: