Microsoft Office 365 is a large set of tools for collaboration and communication, all based on a core of Excel, Word, SharePoint and the other common Microsoft tools. If you and your colleagues or students are comfortable in this space, this may be the easiest set of online collaboration tools for you.

A complete list of tools is far too lengthy to include here, but among the most useful during this period may be Teams, which allows shared editing of files, group topical discussions, task lists and many similar team-oriented features.

For individual use, OneDrive is a great cloud file storage tool allowing you to access your files from anywhere at any time. All files are encrypted in transit and at rest, and are contractually protected from any use by the data holder.