I regularly check this site for data about the value of the dollar in foreign currencies. In the center of the home page are a series of flag emblems, labeled "charts," which if clicked will pop up with graphs of the various currencies' recent and past history against the dollar.
Of course all the charts show the precipitous decline of the dollar--most notoriously, lately, against the euro--but check out whazzup with the Canadian dollar. If ever I had in mind to split to Vancouver, no way Jose. Not with the Canadian dollar (until a few years ago worth about $.65 US) now worth a nickel than ours.