Don't want to use a username and password to log on? Then social login might be just the thing you're looking for.
All the available Janrain
identity Providers, and how to work with them.
Implementing Social Login
A step-by-step guide to social login.
Make sure that social login works the way you want it to.
and event handling.
Social Login Analytics
How many people are logging on using Facebook accounts?
Authenticated shares, native shares, email shares -- it's all here.
Putting your own stamp on social sharing.
Complete Social Login Index
Your complete guide to social login resources.