Links
Here are some links that are interesting to see and read:
www.spielmuseum-soltau.de (Klein-Paris)
www.iTopSpin.com
(with a worldwide forum about spinning tops from now and then)
www.antiquetoys.nl
(with folk art toys and sometimes wooden humming tops)
www.pwcollections.nl
(a website of the co-author of Folk Art Toys from the Polder)
www.baldufa.com
(a website of the Spanish spinning top club)