The Baroque Guitar :: Printed Music from 1606-1737 - Dr Gary Boyes' research into playing styles and repertoire for the Baroque guitar, with an explanation of tablature used in the period.
Baroque Guitar for the Modern Performer - An article exploring the differences between the baroque and modern classical instrument, their respective repertoires, and adapting the older music for the modern instrument.
Early Guitar - Scores and MIDIs of arrangements by Dana Hawkes. In .pdf form.
Francois Campion :: Pieces for Baroque guitar in alternate tunings - A collection of pieces by Francois Campion for Baroque guitar, in modern tablature; also notes on Campion's tunings.
Guide to Early Instruments :: The Guitar and Vihuela - Describes and traces the development of early members of the guitar family.
The Guitar in England - Excerpts from "The Early Guitar: A History and Handbook" (James Tyler, OUP, 1980), describing the development of the vihuela, Renaissance and Baroque, and English guitars, with comments on tunings and playing techniques.
The Guitar Pre-1650 - The guitar and its predecessors; a short history with practical tips about finding/playing old instruments.
Instructions for the Baroque Guitar - Three translations of contemporary guidance for Baroque guitar players, covering tuning, tablature, and stringing.
La Vihuela - Gallery, performers and discography of the 16th century Spanish guitar.
The Lute Ring - A webring for sites related to lutes and early guitars.
A manuscript found in Oporto - Preserved in Galvao-Kristófcsák Foundation of Lagos, in Algarve, Portugal, it is a unique, anonymous collection of works for five course Baroque guitar.
Monica Hall Baroque Guitar Research - Pieces by Corbetta from Castillion's Liege Manuscript and five course guitar stringing.
Sixteenth-Century Printed Tablatures - An annotated bibliography of tablature written for the lute, vihuela, early guitar, cittern, bandora, mandora, and orpharion; arranged chronologically and by composer.