Internet Viral Marketing

The definition of  Internet viral marketing, as it is also known, is the act of promoting information or products that other customers are compelled to give to other friends, colleagues and family. In the old days, this was known as "word of mouth" marketing. Today, the Internet viral marketing provides a number of ways to engage in word or mouth marketing efficiently at a potentially very low cost.
When viral marketing is undertaken on the Internet, a message may go "viral" due to people forwarding email messages with links to friends or otherwise encouraging others to visit specific websites or pages on the Internet.

The Value of Viral Marketing

The theory behind the value of Internet viral marketing is that the message can be received by exponential numbers of potential customers. For example, if I forward your message to 10 friends and each of those 10 friends forwards the message to 10 other friends, the message could spread very rapidly.
Google's YouTube is probably the best example of Internet viral marketing. If a video is very funny, unusual or provokes certain emotions, it's likely that the video will become popular quickly. Links to the video will quickly multiply as viewers share the video with others. Many may even decide to embed the video in various places on the Internet, drawing even more attention.