Web Content Management (CMS) Market Summary. Meta Group have recently released the METAspectrum summary of the North American Web Content Management (Web CMS) market. The focus is on WCM systems and ECM systems that are purchased expressly to drive Web sites. Out front they find the usual suspects, those being Documentum, Vignette, and Interwoven. Following in the top challenger roles are Microsoft, Stellent, FileNet, and IBM…. [CMSwire]