Share a paragraph (or part of a text) on facebook

I just saw a new feature for sharing a part of text on facebook. c.f. http://www.metrolyrics.com/someone-like-you-lyrics-adele.html

This should be done by javascript and probably with aid of jQuery. Is there a developed plugin for this purpose? What is the pathway to develop this idea?开发者_开发技巧

You can use the Facebook Javascript SDK to call the feed dialog. You put the text you want, in their case the lyrics, in the caption and description properties of the feed dialog.