The Harvard Business School Publishing, the Kennedy School of Government, the Darden Business School at Virginia University and the Richard Ivey School of Business websites contain extremely helpful material and information about the case method. You can access samples of their case studies by following the instructions on their websites:
Harvard Business School Publishing: http://hbsp.harvard.edu/product/cases
Kennedy School of Government Case Programme: http://www.ksgcase.harvard.edu
Darden Business School Case Programme: http://www.darden.virginia.edu/
Richard Ivey School of Business: http://www.iveybusinessjournal.com/
The North American Case Research Association is dedicated to the development of case studies and the diffusion of the case method. It provides a gateway to other case resources and it can be found at: http://nacra.net .
The Economics Network website contains links to Web-based resources on the case method and it can be accessed at: http://www.economicsnetwork.ac.uk/teaching/casestudy .