A viral video is one that becomes popular through the process of Internet sharing, via social media, sharing sites, or good ‘ole email. Everyday we highlight some of the best that are currently viral and some that are trending that way.

Today’s videos feature a fake tiger duping a fire department, sling-shot fighting like you’ve never seen, and The Lego Dark Knight Rises.

All mash-ups should try to monetize by selling t-shirts and iPhone covers…just make sure it’s as cool as this one.

sterling cooper vader price from Dann Matthews on Vimeo.

Ok technology, so people can read books on touch screen interfaces now. But you can’t flip through like you would a normal…oh, crap.

It begs the question, which island would you rather end up on? For many the choice is obvious, but REALLY think about it for a second. Yeah..Megan Fox island.

Parody trailers are always made better with Lego’s, and Batman.

It’s amazing how much more likable politicians are when they don’t hold a position or have a chance of winning one. I mean he’s hanging out with Colbert and singing Pokemon Movie theme songs. Should have done a bit more of that earlier. (Skip to 1:44 for the singing)

No story about a man and a whale has been so beautifully told, from a visual standpoint anyway.

The Whale Story from Tess Martin on Vimeo.

I have to give it up to Yvette Nicole Brown for keeping her cool and making an awkward situation funny. Let’s hope we get another season of Community.

I’m pretty sure knocking it off the ledge with your stick should have given it away. Probably should have been realized even before that.

Let’s all raise our glasses to the independent game developers out there. Based on this trailer, they sacrifice their sanity to keep us entertained.

Indie Game: The Movie Official Trailer from IndieGame: The Movie on Vimeo.

I think people would get in more slingshot fights if they went like this…