Yet another revolutionary Lean book (not)! It is in reality just market and product analysis that you would be taught at any decent MBA course, with some sprinkled in stuff about how this fits in the Web 2.0 (or Lean Startup) concepts. It also tries to overreach whern it tries to define the business models you should use in these scenarios, and seems very devoid of any references otherwise than som blogposts of dubious nature.

There are better books out there on analytics, buy them instead!