Managing the IT Portfolio (Update Circa 2003) (with Sinan Aral), Vol. III, No. 1C, March 2003. Introduces the MIT CISR IT Portfolio framework with four IT asset classes and provides benchmarks for 2001 and 1993-97. "Managing the IT Portfolio: Returns from the Different IT Asset Classes" (with Sinan Aral), Vol. IV, No. 1A, March 2004. Provides firm performance returns for investments in each of the four IT asset classes. "IT Savvy Pays Off" (with Sinan Aral), Vol. IV, No. 3B, October 2004. Demonstrated the extra returns to the bottom line from IT investment in firms with high IT Savvy (a set of interlocking IT practices and competencies). "IT Savvy: Achieving Industry Leading Returns from Your IT Portfolio" (with Sinan Aral), Vol V, No. 2A, July 2005. Case studies on companies with high and low IT Savvy plus suggestions for maximizing the business value of IT investments. "Managing the IT Portfolio (Update Circa 2005): Where Did the Infrastructure Go?" (with Anne Johnson), Vol V. No. 3A, December 2005. IT Portfolio benchmarks for 2005 and 2001 - demonstrating a significant drop in IT infrastructure. "How IT Savvy is Your Enterprise? Self Assessment and Benchmarking" (with Sinan Aral), Vol. VI, No. 1A, March 2006. A self assessment for IT Savvy with benchmarks