This Web site by the Irish polyglot who gave a TED talk about speaking from day one is billed as foreign language and travel hacks. Any brief perusal of social media sites like Pinterest or Tumblr will show that hacks are a popular topic -- life hacks, cleaning hacks, Disney hacks, etc.
Facebook is blocked at my school, and an educator there (not me, thank heavens) just had their (sorry about this pronoun) FB page hacked w/a very graphic sex video seen by all the kids and parents who were person's friend, but nonetheless there are reasons to use it with students.
