Planet Harmonica

http://www.planetharmonica.com/

Harmonica House

http://www.bluestime.it/harmonica_house/index.html

Harp On!

http://www.angelfire.com/music/HarpOn

Harp-L

http://www.harp-l.com

The Encyclopedia of the Harmonica

http://www.eharmonica.net

Javier Argomedo

http://www.harpingmidi.com

Paul Lassey

http://paul.lassey.free.fr

Harmonica World Japan

http://www.bekkoame.ne.jp/~mshige/index.html

The Society for the Preservation and Advancement of the Harmonica

http://members.aol.com/harmonica/index.html

Trossingen Harmonica Festival

http://www.whf-2001.de/