Font Management in macOS and OS X
This section examines each of the various Mac OS releases (Panther 10.3 through Sierra 10.12) and pr...
Open Foundry
A new platform for open-source fonts in a noise-free environment, to highlight their beauty, extend functionality and encourage further exploration.
The Ultimate Guide to Font Pairing
Good graphic design doesn’t happen by mistake, and neither does clever font marriage. Use this guide to font pairing to create your own beautiful designs.
Design With FontForge
A Book About How To Create New Typefaces Using FontForge
FontReach
FontReach scans the top million sites to show font usage across the web.
WhatFont Tool - The easiest way to inspect fonts in webpages « Chengyin Liu
Fonts - Apple Developer
Acumin
Acumin is a versatile sans-serif typeface family from Adobe. It comes in a wide range of weights and widths, from Thin to Ultra Black, Extra Condensed to Wide
Full Library | Typekit