A few big companies have started using viral marketing. Production costs are minimal and reach is exponential. Here are a few examples that I really like:
1. When MBNA merged with Bank of America merged two employees sang a song at a company meeting. Someone posted the video on YouTube.
2. The Indiana Pacers basketball team created a unique viral video to generate excitement for their opening game of the 2007-2008 season.
cool
It seems to me that viral marketing really is the way to go.