The Tremolo

A US perspective, with some reviews.

to harmonica instruments music tremelo ... on 05 October 2012

Harmonica Company - Online Harmonica Shop . Harmonicas

The other UK-based harmonica dealer, with a comprehensive selection of spares (including new combs for the older chromatics I've got).

to harmonica instruments music shopping ... on 05 October 2012

Double Reed Harmonicas - Coast to Coast Music - Harmonica Lessons, Harmonicas and Accessories

This is accurate for the SU-21, at least. The web could really use a comprehensive list of harmonica tunings, though.

to harmonica instruments music ... on 05 October 2012

Harmonicas Direct

Shipped next day. (My neighbours must hate me; this is probably more annoying than the banjo.)

to harmonica instruments music shopping ... on 05 October 2012

Brother Steve's Tin-Whistle Pages

Not for complete beginners (the question I was trying to answer was "which hand goes at the top"...), but lots of interesting stuff.

to folk instruments music whistle ... on 16 September 2012

Jew's Harp Instructions

"How to play the jew's harp in a virtuoso manner: Instructions and sound examples". Good analysis of how it works and why it sounds that way (and a number of tricks I'd not been taught before).

to instruments jews-harp music ... on 06 August 2012

Talking Reeds | Accordion repair and tuning

More detailed instructions. Some of this is terrifying.

to accordion instruments music repair ... on 30 July 2012

Ike's Accordion Repair and Tuning Home Page with Free Advice

Good descriptions of how to do basic stuff from a luthier. (Or whatever an accordion-servicer is called...)

to accordion instruments music repair ... on 30 July 2012

Accordion FAQ

to accordion instruments music ... on 30 July 2012

Daniel Brauchli Luthier

Some very neat guitar designs -- especially unusual approaches to top bracing.

to engineering instruments luthiery music ... on 30 March 2012