Did you read it properly: before I read I assumed it was standard arbitrage. He's not affiliating he's cleverly using free adwords impressions to get higher grade service through referrals.
Perhaps it's so close to brand arbitrage as to not be relevant but I found it to be an interesting twist.
Also, it's quite interesting to speculate on the effect on the cost of dropbox related keywords and the benefit to dropbox of getting high value (non-brand) keywords purchased for them using Google's marketing budget.
Aside: appreciated the transparency of the viewport-fixed top bar.
Perhaps it's so close to brand arbitrage as to not be relevant but I found it to be an interesting twist.
Also, it's quite interesting to speculate on the effect on the cost of dropbox related keywords and the benefit to dropbox of getting high value (non-brand) keywords purchased for them using Google's marketing budget.
Aside: appreciated the transparency of the viewport-fixed top bar.