Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Miro - Scalable, secure, cross-device and enterprise-ready team collaboration tool for distributed teams. Join 2M+ users & 8000+ teams from around the world.
Infinity - Infinity is a fully flexible work management platform where you can organize all your work, your way.
OpenBoard - The OpenBoard software is an interactive white board software.
Toby for Teams - Better bookmarks, now with collaboration baked in 🔖
Conceptboard - Instant Whiteboards for Teams & Projects