Social Single Sign-On- Authentication Providers in Spring ’12
How to use external authentication providers such as Facebook to access Salesforce portals and orgs.
Big or Small, You’ll Love the Social Fleet- Salesforce of Things
A video on The Social Fleet, an application that helps you monitor and manage your fleet using the Force.com platform.
Forcing Opportunity Creating During the Lead Conversion Trigger
A trigger that throws an error message if the Create Opportunity check-box is not checked.