Examples of organizational mission statements can be readily found on the Internet. At Disney [http://disney.go.com/] you'll find an example of a traditional mission statement. Another version of a traditional statement is IBM's [http://www.ibm.com/]. Ben and Jerry's [http://www.benjerry.com/] has an example of a newer mission statement that focuses on philanthropy and community service.
For a short and helpful summary of MBO, see the Web site of The Working Manager [http://www.theworkingmanager.com/], an Internet site for free management advice, edited by a board of international scholars and managers.