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