Nothing is as quick and effective as a Viral Marketing campaign. When people spread your message for you, it will definitely create a bigger impact. Viral Marketing despite being a new entrant has generated a lot of excitement in the marketing world.
So, what exactly viral marketing is? There are types of Virals and principles of Viral Marketing, which you need to understand & get your hands-on before running a campaign. If you want to know more about Viral Marketing, here's an interesting infographic from Design Team of InfoGraphic.com.