ISACA (Information Systems Audit and Control Association) (http://www.isaca.org/)
wikipedia(http://en.wikipedia.org/wiki/COBIT)
wikipedia(http://en.wikipedia.org/wiki/Information_Technology_Infrastructure_Library)
ISO 20000(http://20000.fwtk.org/)  
ISO 2000 documents and Toolkit(http://20000.standardsdirect.org/)