The concept of viral marketing is simple…
Implement an entity that is so compelling, so interesting, so valuable, that anyone who comes in contact with it immediately has the desire to share it with someone (or everyone) they know.
In other words, it’s viral.
But only in the sense that once that entity is out there, it takes on a life of its own, spreading and multiplying like some powerful yet non-threatening virus.
As Martha Stewart says, it’s a good thing.
There are numerous and creative methods that can be implemented for viral marketing. But in order to be effective, any method chosen needs to contain these same three primary ingredients (in one form or another)…