8notes.com Article on Hummel, with contributions from Dr. Clifford and Marianne F. Review of CDs and recordings. http://www.8notes.com/biographies/hummel.asp
Chandos.co.uk Home of many innovative Hummel recordings. You will also find some discussions on Hummel in the forum section of this website. http://www.chandos.co.uk/
Classicalarchives.com A place to find discussion and downloads. Mr. Tao's midi sequencing for some still-unrecorded Hummel works can be found here. http://www.classicalarchives.com/midi/
Compactdiscoveries.com Fun little personal article, about how a man discovered Hummel. http://www.compactdiscoveries.com/CompactDiscoveriesArticles/NazarethHummel.html
Klosterneuburg.net A great, well-researched biography on Hummel. Short explanation of the Double Concert, and list of bibliography. Recommended! http://members.klosterneuburg.net/handerle/COMPOSER.HTM#HUMMEL
Mozartforum.com Nice biography of Hummel, plus anecdotes. Brief list of works and bibliography. http://www.mozartforum.com/Contemporary%20Pages/Hummel%20Contemp.htm
NAchlass Ferdinand Hiller 1902 verkaufte der Frankfurter Konservatoriumslehrer und Pianist James Kwast nach der Trennung von seiner Ehefrau Tony Kwast-Hiller Musikhandschriften (Autographe) und Handexemplare seines Schwiegervaters http://www.ub.uni-frankfurt.de/musik/hiller.html
