The state of network-accessible information is preserved by recognizing a reference to a uniform resource locator contained within an electronic file where the uniform resource locator provides an address for content to be preserved. A copy of at least a portion of the information associated with the recognized uniform resource locator is obtained defining relevant content for preservation. A determination is also made as to whether the relevant content of the recognized uniform resource locator has changed since obtaining the copy of the relevant content. If a change is detected, an indication of the change is conveyed, e.g., to a corresponding user.