One of the reasons that I love the CIO Exec Series Group is that some of the topics just seem to come full circle. In 2002 we had a group discussion Metrics and uncovering costs of IT; and then translating this to the business. Times were a challenge in 01/02 and although are getting better now, the Data Center Economics conversation is coming full circle. Ironically, when times are good the scrutiny of Data Center economics is not as intense as when times are a challenge. This document I have posted is from a long term member of the group. Darn it I wish I could use his name, but he wants to remain private. This has been a spreadsheet that he has used to uncover and communicate IT costs to the business for over 10 years. It is simple, straight forward, and powerful. I like it and I hope that you will too.