OCAI Online offers the Organizational Culture Assessment Instrument (OCAI) developed by Cameron & Quinn online. It's free for individual respondents so try it at http://www.ocai-online.com
Learn how to utilize the OCAI tool in the online video training at http://www.organizationalculturechange.com
Buy the book: "Organizational culture change: Unleash your organization's potential in circles of 10" on Amazon: http://www.amazon.com/dp/9081982516/
Marcella Bremer is associate partner at OCAI Online and she's an experienced professional in the field of corporate culture change. Her motto is: "Develop the workers, the workplace and the world." She helps organizations and consultants diagnose and change culture so they can utilize culture to create a great place to work (including organizational effectiveness).