I will never trust a single article from Mashable ever again.
The scummiest tactics to date.
Well. Pretty much the same as on twitter. You make a post, and then put a hastag next to the word that best describes the #post. This allows people to share content and have it in a specific category for everyone else in the world.
Really this is the very first time I ever saw Facebook actually be a SOCIAL network. because now, you can find people who talk about like minded content.