Xmind - Xmind is a brainstorming and mind mapping application.
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MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Slack Secret Santa - Throw a Secret Santa with your Slack team! 🎅🎁
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.
SantaHunt - Secret Santa with the Product Hunt community