Viral marketing is simply marketing that spreads of its own accord, after enough people have had the marketing material sent on to them to start the ball rolling.
Typically it takes the form of videos, stories or information that are spread by email, and must be compelling enough that people feel the urge to pass it on to their friends, co-workers and other acquaintances.
It has to be quirky, unusual, funny, topical or shocking to achieve this. When it catches people's attention, a large amount of the distribution work is done for you.
GWS can provide viral adverts in different media, and advise on viral marketing opportunities linked to your Website.