BlockParty - Real-time voice chat rooms from the creators of turntable.fm
You've Got Spam - A new tool that lets you spam back the spammer
Referrer Spam Remover - Remove spam bots from your Google Analytics data
Castle - The easiest way to protect your users from getting hacked
Moderate - Identify, mute, and block trolls in your Twitter feed
RoboStopper - Block spam calls or get paid for them wasting your time