Also has many good programs to promote the hobbies of coin and banknote collecting. They focus on United States paper money. Includes information on Antarctica and this series of notes. Interesting information on security features. Easy search function.
Dealers can open their own store here.
This page is in English as well as being available in Dutch. It looks like there are scans of all Dutch denominations. It is sorted nicely by country and includes prices. A great section of free classified ads for banknote collectors who want to trade, buy or sell notes which is sorted by country. He has a well laid out price list which includes some images.