kahoot-smash VS Lepton

Padlet - Visual boards for organizing anything.

Simple Snippets - Simple Snippets is place to easily create and manage your code snippets. The main features of the Simple Snippets: code highlighting, snippet groups, public and private snippets.

Quizalize - Quizalize is a leading web-based and mobile-based classroom application that delivers the best and easiest way to differentiates your teaching.

GitHub Gist - Gist is a simple way to share snippets and pastes with others.

Popplet - Popplet is the simplest application to capture and organize your idea.

3Cols - Manage your code snippets in the cloud fast, easy and free for personal use forever.