Google Docs – a free alternative to MS Office Word, Excel, PowerPoint. Once you have adapted and you work collaboratively, you may not want to go back to MicroSoft Office.
In MicroSoft, only one person at a time can work on a document. In Google Docs, many people can work on the same document at the same time. You can watch modifications being made onscreen as they happen. It is cool and it is efficient.
Slack – for team communications
Zoom, a good way for multiple parties to keep in touch via video conference. Get the app and connect to your community. It’s free.