Completely agree with Steve that you can build and deliver capability for your business using freelance staff. The book does a great job in explaining how to do that. I have found it can be extended into the offline world too. I agree with the Elance recommendation and feel the next book could extend this thinking to embrace collaboration.
I wish I had this book some time ago, as my first attempt at outsourcing was a disaster and cost me money. However if you follow Steve's advice I'm confident i'll avoid the mistakes that I made the first time.