I had a nice email from a colleague in India about my Observer column on the surveillance-based business model of the contemporary Web.

Excellent piece today John on surveillance being the revenue model of the Net.

When I read your piece, what was the banner ad on the Observer page? Jet Airways fares from Bombay to Delhi?

And what was one of the things I was looking for on the net earlier today…the price of air fares from Bombay to Delhi…including on Jet Airways.

Neat, eh?