Sococo - Sococo offers a virtual office where business teams can interact with one another, wherever they are.
Xmind - Xmind is a brainstorming and mind mapping application.
Wurkr.io - Best virtual workplace solutions to build online virtual office for your remote team to work smarter and efficiently with your clients.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Teamflow - Feel like a team again with your own virtual office
FeatureMap - FeatureMap story mapping, simple and effective realtime collaboration and collective intelligence tool.