What authentication does Facebook use?

What is an 'access token' ?

In Graph API 2.0, what is the current way to get tag friends in stories (e.g. status update or actions)?

How can you get current sessions user's profile via the Graph API in PHP?

What is the correct API endpoint to retrieve Facebook Posts for the logged in user

What query language do Facebook applications use?

Email notifications can be sent by passing the email param to which method?

Which is NOT optional parameters that can be passed to the feed.publishStoryToUser method?

What are Profile Action Links?

With desktop applications which parameter can be used to create a call stack?

Within a Facebook Application the 'canvas page' is...