Commandline Challenge - Test your command line skills
The Security Checklist - The Practical Security Checklist for Web Developers
Prompt - Prompt provides fully-integrated writing education solutions, combining instruction, curriculum, and feedback. We support educational institutions, companies, and individuals.
SafeBase - SafeBase is the interactive security portal to share your security posture, automate access to sensitive compliance information, and subscribe to vendor security program updates.
Cwiki - A Command line interface for searching Wikipedia!
WordPress Security Scanner - Check if your WordPress site has known vulnerabilities