EtherPad : Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js
Unsplash : All photos published on Unsplash can be used for free. You can use them for commercial and noncommercial purposes.
Maqetta : Maqetta is an open source project that provides WYSIWYG visual authoring of HTML5 user interfaces. The Maqetta application itself is authored in HTML,...
morgueFile : The morguefile contains photographs freely contributed by many artists to be used in creative projects by visitors to the site.
