A method, system, and computer program product for federating tags across multiple web-based systems in order to provide an improved tag management system which allows users of a community to upload their contributions to the content of the content server systems, including uploading their tags. The method includes: storing tags in a central database, wherein the central database accesses the resources and the tags of the multiple systems; retrieving all tags from the central database; displaying the tags to a user; receiving a search request by the user, wherein the user search comprises selection of specific tags or specification of tag search criteria; generating a tag cloud containing references to tag-associated resources which result from the search, wherein the resources may reside in any one of the systems; and displaying the resources.