Configure alternative sign-on providers for Salesforce

Configure a LinkedIn Authentication Provider Configure a Twitter Authentication Provider Configure a Facebook Authentication Provider Configure a Google Authentication Provider 1. Configure which scopes (user details) to get from LinkedIn. 2. Set up a LinkedIn application. (Repeat for Google +, Facebook and Twitter) 3. Define a LinkedIn Provider in our Salesforce organization and establish a registration handler. 4. Edit the registration handler. 5. Update our LinkedIn application to use the Callback URL generated by Salesforce as an entry in the LinkedIn OAuth 2.0 Redirect URLs. 6. Test the single sign-on connection. Repeat above six steps for Google +, Twitter and Facebook