facebook integration for sites

Question

AFAIK, the following are not possible for now: (Assuming we have user A which has allowed us all permissions:)

1. Send a message to a A's friend
2. get A's friends email

Aside from the obvious "Like" button, what are the ways that an app can leverage facebook's graph API to increase traffic flow?

I find the Like button to be more of a broadcasting mechanism. I was wondering what are the ways that I can specifically tell user B, whom is a friend of User A, that he/she should come check out my site.

Many thanks

Answer 1

您可以在用户的​​供稿上发布故事，以使他的朋友可以看到您提供的内容。