Flow-e is a visualization layer on top of your Gmail or Outlook inbox. It provides an elegant Kanban-like workflow that's combined with the ideas behind Inbox Zero and GTD. Flow-e eliminates the need of external task management tools and transforms your inbox into a central To Do app.
KanbanMail - A Kanban board for your emails.
The Security Checklist - The Practical Security Checklist for Web Developers
Sortd - Rated the #1 App for Gmail
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.
Drag for Gmail - Transform Gmail into organized To Do lists (like Trello)
WordPress Security Scanner - Check if your WordPress site has known vulnerabilities