This document summarizes Broadlane's transition to virtualizing its data center infrastructure. Broadlane issued a request for proposals to 10 providers and selected Terremark after evaluating responses. Over a 3 month period, Broadlane migrated all production servers to Terremark's virtual platform. As a result, Broadlane consolidated over 600 physical servers into around 100 virtual servers, reducing energy usage by over 2.5 MWH annually and cutting CO2 emissions by 1,500 tons per year. Lessons learned included carefully profiling each server, ensuring software compatibility, checking licensing, and scaling host server memory.