1. Management strategies for the cloud revolution : how cloud computing is transforming business and why you can't afford to be left behind.

2. Behind the cloud : the untold story of how salesforce.com went from idea to billion-dollar company and revolutionized an industry.

3. Handboek Facebook-marketing

4. De conversation manager : de kracht van de hedendaagse consument : het einde van de traditionele adverteerder