Acoustic Guitar - Annotated Guide
This site by Tom Loredo covers everything from instruments to lessons, tab and MP3 sites.

Folk Stuff
Information on unusual instruments: Theramins, didgeridoos, psalteries, and dulcimers.

Guitar List
If you're looking around for a guitar, this site can supply you with descriptions and contact info for most of the fine and popular guitar makers, along with buyer tips on picking pricing. Not too current with web info.

Harmony Central
An excellent all-purpose web resource for guitarists - players, learners, buyers, sellers. News, forums, and links to tab sites. Commercial real estate.

Associated Bag
Shipping supplies.

Janet Davis Music
This retailer in Northern Arkansas specializes in bluegrass, but has an excellent selection of professional equipment and the lowest prices I found on the net. Very pleasant to deal with.

Elderly Instruments
Nationally renowned dealer in vintage instruments, their store is in Lansing, MI. Now deal with them via the internet.

Famous Guitarmaker
Hardware Depot - a source for amps, accessories, cases and more.

First Quality Musical Supplies
On-line retailer of professional instruments and equipment.

Hobgoblin Folk Instruments
Retailers of traditional folk instruments, located in England.

Mandolin Central
On-line retailer of mandolins and accessories - based in Silver City, North Carolina.

Musician's Friend
Popular catalog company with online sales. Good deals on sale items.

Oasis CD & Cassette Duplication
This company gets great customer reviews, plus they seem committed to helping artists in other ways - like issuing and heavily promoting compilation CDs. Good choice.

Piper's Cove
Kearny, NJ. Online retailer of bagpipes and imported supplies for the serious lover of Scots and Irish music.

Twelfth Fret
Toronto-based store has excellent site with used/vintage listings.

Wheatstone, C & Co.
Manufacturer of Wheatstone handmade Concertinas (C.W. invented them). Hand-made to order and replacement spares. Site details model info plus Conditions of Sales for international supply. No trade in second-hand instruments.