“Because That’s Where The Money Is?”

Earlier I posted about Google’s projection that the current $20 billion display ad market would increase fivefold in the near future.  Being a rounding error in a market growing this massively can be more lucrative than being a leader in other more popular markets for entrepreneurs such as music, which are much smaller markets.  Designing a business that can draft on this growth  offers more possibility for success than a business in which one needs to invent a revenue model.