Super Mediocre Guitar
Don't just be mediocre, be super mediocre
Guitar scale libraryhttps://www.guitarscale.org/
Chord Library http://adamsguitars.com/content/guitarwebapp/index.php?md=2
Create fretboard diagrams.https://www.editor.guitarscientist.com/new
Lots of good tools and visualizationshttp://fretflip.com/