[drdoom]

Hello,

I haven't read the book but I am planning to.

I caught the last few minutes of your interview on NPR the other day. You said you built the FB Exchange. I made a mental note to look that up later and now serendipitously, it shows up here. Anyhow, not familiar with it but it sounded like some sort of an interface to Amazon. Would you care to elaborate?

[HillRat]

Exchange is/was FB's retargeting/remarketing solution, AKA "we will follow you everywhere you go on the Web and remind you that you once looked at a pair of shoes on our site." Some detail would be cool -- adtech is intrinsically interesting, if ethically somewhat murky.

[antongm]

True!