Industry Research
Below are links to some of the most valuable sources of research on the coaching industry, specifically relating to coaching in the workplace.
Associations
CIPD - The Chartered Institute of Personnel Development in the UK is doing extensive research into coaching.
CIPD Coaching and Mentoring Site - An excellent research, industry data and white papers on coaching in the workplace.
International Coach Federation - The world's leading industry body for coaching.
Magazines
Coaching at Work Magazine - The best journal for OD practioners on the consulting side of workplace coaching. 
International Journal of Coaching in Organizations - An academic journal on workplace coaching.
Websites
International Consortium for Coaching in Organizations - Networking, research and ideas on coaching in the workplace.
Peer Resources - An excellent reference library of academic coaching research and articles.
Brain-based Coaching Research Group - An interest group about the science of coaching, email for more information.
Others
NeuroLeadership Summit and Institute - Research on the links between leadership and the brain.
David Rock's Blog - Links and further resources on coaching and the brain
Workplace Coaching Case Studies - Research and examples of projects delivered by RCS
