MindMeister

MindMeister is a collaborative mind-mapping tool launched in 2007 by MeisterLabs, with offices in Munich and Vienna. Users can build mind maps with real-time collaboration, share and edit, leave comments, attach files, images and videos and link to internal and external sources via embedded URLs. It integrates with MeisterTask so ideas convert directly into tracked tasks on a project board. Pricing follows a freemium model with Free, Personal, Pro and Business tiers (around $7.50 to $19 per user per month).