The D*A*M Forum | discussion of vintage fuzz pedals (as well as modern recreations) spanning over a decade

DiscoFreq’s Guitar Effects Database | one of the longest-running websites devoted to guitar pedals

Tone Machines | Ed Skymall’s blog, featuring articles, photos & videos of vintage pedals from around the world

Graphtronix | [JP] data dumps from Yoshi Murata’s collection | Alan Vale’s collection of vintage amplifiers | a very thorough resource on the history of Vox equipment, & Tagboardeffects | resources for DIY fuzz box builders