The GTK Project

• https://www.gtk.org/
• https://blog.gtk.org
• https://twitter.com/GTKtoolkit
• http://glade.gnome.org/
• http://www.gnu.org/
• http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
• http://www.gtk-apps.org/
• http://validator.w3.org/check?uri=http://gtk.org/&charset=utf-8&doctype=Inline&group=0
• http://jigsaw.w3.org/css-validator/validator?uri=gtk.org/css/global.css&profile=css21&usermedium=all&warning=1&lang=en