A method and system for filtering tags in a collaborative bookmarking system wherein the collaborative bookmarking system includes confidential and/or proprietary information, whereby tag filters prevent access to certain confidential and/or proprietary information by permitting a user access to the collaborative bookmarking system, authenticating the user, permitting the user to submit a search request to the collaborative bookmarking system, whereby the search request retrieves search result tags, and filtering the search result tags to provide only authorized tags to the user.