Use Milanote for the research, thinking and planning behind your next great piece of work. This is an amazing tool for collaboration.
Synthesis is a social intranet based on Microsoft SharePoint, which integrates with Deltek Vision, Newforma Project Center and Axomic OpenAsset.
Slack is a team collaboration and communication tool. It can be expanded with apps to perfectly suit your team.
GitBook helps your team write, collaborate and publish content online. Very useful for firm standards like BIM best practices.