If there is a very big new business,it’s the iphone.
People tried all sorts off marketing,now even porn sites especially for the iphone appeared.
That’s a very good way to explain it.
Porn follows the new ideas:
vcr,dvd,internet,…
If you reasearch this market before there comes out a big idea like specialized porn sites you will get a nice amount of traffic,try to create something interesting and you will reel in the money.