According to them, you should buy coins because there will be a recall of U.S. paper money. No online inventory. Sells some Canadian paper money, holders, and books. Also has a short FAQ for Canadian paper money. That was on July 11, 1995.
Most collectors just say no.
Another site with only basic info and no offerings. Holds online auctions and fixed-price sales for several dealers. The first place to automatically update bids and inform you about new bids. A decent selection of U.S. and Confederate paper money. Specializes in items from Australia, New Zealand, Fiji, the Cook Islands, and other countries in the region.