As Silicon Valley has boomed, there has been a flurry of public scrutiny of Apple, Google, Microsoft and Facebook. But one company has stayed strangely out of the spotlight: Amazon.

In a new Financial Times ebook, on sale globally today, Barney Jopson and other FT writers lift the lid on a company which has grown from online book business into overlord of a corporate eco-system over which it wields extraordinary power. Read more

It looks like back-to-school shopping has hit venture capitalists and Facebook this week. The social networking company announced an intriguing acquisition of digital book publisher Push Pop Press. Meanwhile, Inkling, which has a publishing platform for putting textbooks on the iPad, raised a new round of funding. Read more