Abstract: A variety of systems responsive to watermarked documents are detailed. In one, a system includes a user terminal, a central site, and a website. The user terminal includes a watermark reader, and a capture device to capture an image of a watermarked document. The central site includes a database of watermark identifiers. The user terminal communicates an extracted watermark identifier to the central site. The central site interrogates a database via the extracted watermark identifier to find any related information. The central site generates a validation key and communicates such to the user terminal. The validation key can be used by the website to validate access by the user terminal.