Xmind - Xmind is a brainstorming and mind mapping application.
WebPurify - Profanity Filter, Image Moderation and Video Moderation Services Made Easy.
MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.
Smart Moderation - Stop Inappropriate Comments using Artificial Intelligence
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Block Together - A useful tool which helps you block trolls on Twitter.