Phishero - Test your organisation's resiliency towards phishing attacks
BlockParty - Real-time voice chat rooms from the creators of turntable.fm
Canned Emails - A minimal site with prewritten emails
Block Together - A useful tool which helps you block trolls on Twitter.
Spam Check - A free JSON API to check your email messages' spam scores
CleanSpeak - Keep inappropriate content and trolls out of your community