With the popularity of Gmail, Google authentication is an attractive alternative for many guests. Below are the steps necessary for Rock to use your guests' Google passwords for authentication. Visit console.developers.google.com/start and create a new project for your organization. If you already have a Google Maps API key, then you'll want to use that project. On the left hand of the screen expand the APIs and auth menu, click on Credentials, and at the top of the screen click on OAuth consent screen.Fill out this screen with your organization’s information. The information given here will be presented to your users when they sign in for the first time. A preview of the screen your users will see should be on the righthand side of your screen. You’ll want to include branding that your users will recognize and trust.At the top of the screen click on the Credentials tab then click on the Add Credentials dropdown, select OAuth 2.0 client ID, and then select Web Application.Under Authorized redirect URLs, you'll need to place the full URL of all the login pages you configure to use Google authentication. For example, http://rock.rocksolidchurchdemo.com/page/3 for the internal site. When you've finished adding URLs click Create.You should be presented with a Client ID and a Client Secret. Note these values and add them to the Google service configuration under Admin Tools > Settings > Authentication Services > Google.