What is online viral marketing? It is called a successful advertising campaign. The phrase was a creation of a business school graduate, popularized a media critic named Douglas Rushkoff. It simply refers to your ability to reach an unlimited number of people by starting out with a handful.

If you tell me something that I think is interesting, I will tell my friends about it. They will tell their friends as well if they like it. They probably know people that I do not. So, growth can literally become exponential. It traditionally was called word of mouth advertising.

The biggest difference between word of mouth advertising and online viral marketing is the potential number of people that anyone at any given time communicates with daily. I can give you a personal example. I speak to my family every day in my personal life. I may speak to my family and friends once per week.

Some of them I haven’t talked to in years, “live”. I communicate to everyone at least once every day or so via e-mail and social networking sites. If something really grabs me that I think my friends will love too, I will share it with at least 30 people.

Surveys indicate that the average person shares this type of thing with 12 people max. So, I may be a little outside of the loop. The point is that the 30 people that I know will share with others. Effortless, this information ripples through this wave of people. Will the wave eventually crash?

If you have an effective online viral marketing strategy, you may be able to generate numerous waves; when one crashes, another forms. There are a number of different strategies, but all of the effective ones include one element. There is something “free” of value for people to share.

In some cases, it is just a well-done, simple commercial. Sony had one some time ago. It was posted on YouTube and people got it out there to people they knew. To date, it has been seen by thousands of people. How many people bought something? Who would possibly know?

The point is this. To reach hundreds of thousands or millions of people in the not so distant past, TV advertising would have been the only option. And, of course, you would have had to buy space on the most popular shows and the costs are prohibitive. With online viral marketing, you can reach that many people for next to nothing.