Guitars
ARC, Breedlove, Godin, Goodall, Hoffman, How, Johnson, Larrivee, MacPherson, Martin, Olson, Santa Cruz, Seagull, Taylor, Walden, Washburn, Yamaha,

Guitar Parts/Accessaries
Colosi, D'Addario, Firewire, John Pearse, Just Strings, K&K, LR Baggs, P3 Guitar Stool, Tapstring, Webstrings,

Guitar Building/Maintenance
13th Fret, FRETS.com, Fret Focus, K&K Install, LMI, Polishing, Stewart-MacDonald,

Recording
AKG, Audacity, Audio-Technica, Cakewalk, E-Mu, Guitar Mic Technique, Home Recording, Kristal, Lame, Listening Sessions, M-Audio, MXL, Naiant, PreSonus, Rode, Steinberg, Studio-Central Forums, Studio Projects,

Internet Stores
12th Fret, American Music, Buffalo Brothers, Craig's List, Dream Guitars, Elderly, Gruhn, Guitar Adoption, Maury's, Musician's Friend, My Favorite Guitar, Notable, Podium, Shoreline, Sound Pure, Sweetwater, Zzounds,

Local Stores
C.B. Perkins, Fine Fretted Friends, Gilroy, Gryphon, Guitar Center, Guitar Showcase, Schoenberg, Sylvan, Tall Toad, Union Grove,

Lessons/Guitar Tab
911Tabs, Accent on Music, Classical Lessons, Chord Finder, Skeptical Guitarist, Ultimate Guitar Tab, Zentao,

Musicians/Concerts
Don Quixote's, Holly Brook, Peppino D'Agostino, Tommy Emmanuel, fargenbastich, Michael Gulezian, Laurence Juber, Steve Kritzer, Mountain Winery, Don Ross, Jake Shimabukura, Sunset Center,

Discussion, Info, Other
AG Forums, Doug Young, Harmony Central, Larrivee Forum, Martin Forum, Seagull Forum,