Gulden likes to say a mega-region is somewhere you can walk all the way across, from one side to the other, carrying nothing but some money without ever getting thirsty or hungry.

The 50-year-old Mr. Cowell said he was 'offered a lot of money' to remain a judge on 'American Idol,' which has been a mega-hit for the Fox network.

There is little doubt that besides the mega-aggregators, in the world of the free many PDLs will make money selling findability -- in addition to the other generative qualities.