Padlet - Visual boards for organizing anything.
GitHub Gist - Gist is a simple way to share snippets and pastes with others.
Quizalize - Quizalize is a leading web-based and mobile-based classroom application that delivers the best and easiest way to differentiates your teaching.
SnippetsLab - SnippetsLab is an easy-to-use snippets manager.
Popplet - Popplet is the simplest application to capture and organize your idea.
massCode - A free and open source code snippets manager for developers.