Two most important links:

• The WebFont Loader is a JavaScript library that gives you more control over font loading than the Google Web Fonts API provides. The WebFont Loader also lets you use multiple web-font providers.
• https://github.com/wikimedia/jquery.webfonts

Also:
http://fontcdn.org - FontCDN - A simplified interface for working with Google Fonts

See: Fonts
See also Icons SVG or Fonts

http://www.fontspace.com/
http://openfontlibrary.org/
https://blog.wikimedia.org/2013/10/28/the-autonym-font-for-language-names/
http://font-combinator.com/

http://libregraphicsmeeting.org/2015/program/##dave-crossland-goodbye-fontforge

http://news.bootswatch.com/post/125928533622/find-the-right-google-web-fonts-for-your-project