I agree to you that Link is both of information conductor and data conductor. An addition I want to make is that the distinction between an information conductor and a data conductor could be more than the difference between URL and URI. In short, information is data in context, while a context itself could be another data. Therefore, theoretically an information conductor is (and probably should be) a higher-order data conductor. Or let’s put it in another way: an information conductor can be computed by several data conductors and a data conductor can be derived from information conductors.
Source: dagoneye