Meekan - Connecting the world's calendars
Xmind - Xmind is a brainstorming and mind mapping application.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Sidequest for Slack - Create and track personal or support team tasks, 100% inside Slack.
FeatureMap - FeatureMap story mapping, simple and effective realtime collaboration and collective intelligence tool.