Cloud offers technology leaders a fundamentally new approach to how their organizations build, deploy, and manage software and infrastructure. Despite cloud's popularity, infrastructure and operations (I&O) professionals must continue to justify investment and benchmark their cloud progress against that of their peers. To help I&O pros fuel their business cases and internal review, this report serves as a research overview of the most important reports and data in our large portfolio of cloud research. This is an update of a previously published report; Forrester reviews and revises it periodically for continued relevance and accuracy.