Heavily involved in all sorts of social media, Sháá Wasmund founded Smarta.com, an online network that aims to allow entrepreneurs to help other entrepreneurs. This book is partly an old-world, and offline, plug for the network. But it's also more than that.

In fact, the book comes close to being an unrepentant manifesto for the role of social media in business. Thomas and Wasmund say the successful entrepreneurs of tomorrow will be those able to conquer social media and, in particular, build a reputation as an expert in a field related to their business. Forging a reputation means building an online following and communicating with it.

The book is packed with valuable contributions from successful entrepreneurs. But for all the talk of what needs to be done, there isn't enough back-up in terms of how to do it. The result is therefore somewhat less satisfying than it should be. Nevertheless, there are invaluable nuggets about doing business in the digital age. If you are unsure about the value of social media, it's unlikely you will still be so having read this book.