Beginner guitar tutorials:
http://www.justinguitar.com/

Guitar chords and inversions
http://www.chordbook.com/guitar-chords/

String tension calculator (D'Addario-based):
http://hikkyz.net/misc/stringassembler/

Music theory:
http://musictheory.net/lessons

Hal Leonard's Bass Method:
http://www.mediafire.com/file/sayviwqxfcxfjon/

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Steve Vai's Ten Hour Workout
>http://www.mediafire.com/download/kzw6kjuocgicwks/Ten_Hour.pdf

Guthrie Govan's Creative Guitar 1 & 2
>http://www.mediafire.com/download/bn8803xzlrbds3b/Guitar1.rar
>http://www.mediafire.com/download/9uhtufuf3z9cx8m/Guitar2.rar

Advancing Guitarist - Mick Goodrick
>http://www.mediafire.com/download/cvfno10fv4lf4a8

Chord Chemistry - Ted Greene
>http://www.mediafire.com/download/61n5op7eiifxztg

Mickey Baker's Jazz Guitar
>http://www.mediafire.com/download/zq35xorj2iaqh22

Modern Chord Progressions: Jazz and Classical Voicings for Guitar - Ted Greene
>http://www.mediafire.com/download/oflu4wdwofhqqtb

Jazz Guitar: Single Note Soloing Vol. 1 & 2- Ted Greene
>http://www.mediafire.com/download/07o65qdh5in1nsq
>http://www.mediafire.com/download/jmu86f7dj8bdxcd

Impulse Response Pack
>http://www.mediafire.com/download/svtfxjtillrdwt8/Gods+Cab+1.3.rar
>http://www.mediafire.com/download/4n28zkjw0zgmdj9/ASEM+RECTO+V30+L2.wav