Viral marketing refers to marketing techniques that use pre-existing social networks to spread brand or subject matter awareness. For instance, if you found this little synopsis of interest and wanted to share it with a friend or I have provided a "send to friend" link at the bottom, making it easy to do so. I am using your social network to spread awareness about my subject matter. You Tube is the epitome of viral marketing.
For instance, if you came across my article or video on my web site and wanted to share it with a friend or colleague, you would find a "send to friend" link at the bottom making it easy to do so. I am using your social network to spread awareness about my subject matter, via “word of mouth” or shall I say “word of mouse?”
Content managements systems such as Drupal make viral marketing as easy as clicking a link.