Extract information from link, like Facebook wall

Question

I have been developing an application that can publish content like some sort of feed. I want to add the content like a link (like on the facebook wall).

Then i want som

Answer 1

AFAIK Facebook does this by using meta tags (Open Graph Protocol). You can study more at: https://developers.facebook.com/docs/opengraph/.

Basically, you should define a convention if you want to implement is internally.
Hope this helps.