An access management system for managing network access of an end-user to one or more online content sources of a number of content providers. The system comprises a content proxy unit that stores the concealed addresses of the content sources. The content proxy unit is designed to receive a request for accessing one or more content sources from the end-user. The system further comprises an access management unit that stores an access rights record of the end-user. The access management unit is designed to authorize the request according to the access rights record of the end user. If the request is authorized, the content proxy unit facilitates the accessing using the concealed addresses of the requested content sources.