Google Capture the Flag 2017 - Google's 2nd annual worldwide security competition
Note Anywhere - Leave sticky notes on tabs in Chrome
Startup Security Program by Templarbit - Security practices & tools required to close large deals
Thought Train - Stop using sticky notes to remember what you're doing 📒 🚫
The Security Checklist - The Practical Security Checklist for Web Developers
Whimsical - The visual workspace for teams.