Laurie Petersen posted a short article on research completed by Millward Brown on what videos go viral. They all have four common factors.
Laugh (have to be laugh-out-loud funny)
Edgy (make you a little uncomfortable)
Gripping (you can’t stop watching)
Sexual Content (surprised?)
Michelle Eule recommends IKEA’s Pig Chase if you want to get the idea.
I’m not sure that using sexual content is the best approach when doing cause-marketing or product marketing, but there are ways to remain appropriate while applying these four principles.