Slack: Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams.

Evernote: Capture, organize, and share notes from anywhere. Your best ideas are always with you and always in sync.

Dropbox: Dropbox is a service that keeps your files safe, synced, and easy to share. Bring your photos, docs, and videos anywhere and never lose a file again.

Mindmeister: MindMeister is a collaborative mind mapping software that allows its users to visualize their thoughts in the cloud.