For our next stop in the online advertising revolution, let’s visit Nick Haley, an 18-year-old Brit who whipped up an Apple commercial in a day last month. NYT says Haley posted his spot to YouTube, which set off a quick information cascade — YouTube users Dugg it, Apple marketing employees saw it, they told their ad agency TBWA/Chiat/Day to get the English lad on the phone … and soon the big ad pros, with a bit of polish, had the spot running this past weekend on Desperate Housewives.

This user-generated stuff is getting better and better. Chiat, are you nervous?