Scrum Study Cards - An easy to understand overview of the Scrum framework.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Lavagna - OpenSource project management tool designed for small teams.
Facebook Local - Discover places to go and events happening near you
Ora - Welcome to your team’s command center. A place to track projects. Tasks. Time. Commits. Status Reports. Your entire product or business! It's the fastest-growing productivity suite your team needs right now!
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets