Provided are a method, system, and program for promoting content from one content management system to another content management system. Content from a first content management system satisfying a content criteria is determined. The first content management system includes content objects added by users in a collaborative environment. A second content management system providing content objects associated with content categories is processed to determine one of the content categories relevant to the determined content from the first content management system. The determined content is added to the second content management system and the content added to the second content management system is associated with the determined content category.