Paul Magnussen. Classical-popular guitar, flamenco. Interviews with concert guitarists. http://Paulmagnussen.com

Monica Hall. Biographies and research of 17th century Baroque guitarist-composers. Pertinent Articles. Complete transcription in pitch notation of Francesco Corbetta’s La Guitarre Royale (1671). https://monicahall.co.uk/

Gary Boye. Music for the Lute, Guitar and Vihuela (1470-1899). Comprehensive listing and contents of primary sources. Nicholas Erneston Music Library
Thérèse Wassily Saba.
Editor and writer: http://www.theresesaba.com/ext
Classical guitar blog: https://internationalclassicalguitar.com/
Flamenco blog: https://myflamencodiary.com/

Janne Malinen. Performer of Classical and contemporary guitar works and music for vihuela. http://www.jannemalinen.com