As someone who has been a long-time proponent of data, it is intriguing to see the number of new start-ups that have revenue models based partially - sometime entirely - on the sale of data, even though they are not data publishers in the conventional sense. Rather, they are seeking to monetize data they are collecting incidentally in the course of other activities. A fashion website or app, for example, might realize that by tracking what new fashions its users viewed the most, they were collec...