Without access to historical information, organizations today would be severely limited in their ability to make informed, appropriate decisions regarding even the most basic aspects of their business. However, the challenges encountered during attempts to gather, codify and distribute this knowledge can be daunting. The answer for many organizations and their CIOs is Web 2.0 adapted for business-a rich social networking environment that provides secure and integrated collaboration tools which allow employees to harness the total knowledge of the extended enterprise. This whitepaper outlines the four keys to success and discusses the ROI of Web 2.0.