General Productivity

Confluence is content collaboration software that changes how modern teams work. 

G Suite (formerly Google Apps for Work and Google Apps for Your Domain) is a brand of cloud computing, productivity and collaboration tools, software and products developed by Google. G Suite comprises Gmail, Hangouts, Calendar, and Google+ for communication; Drive for storage; Docs, Sheets, Slides, Forms, and Sites for collaboration; and, depending on the plan, an Admin panel and Vault for managing users and the services. It also includes the digital interactive whiteboard Jamboard.

Online versions of Office with email, video conferencing, SIS data sync, compliance tools, information protection, and voicemail integration.

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

Yammer is a freemium enterprise social networking service used for private communication within organizations.  School districts are using it because of it's simplicity and connectivity to Microsoft systems.  Access to a Yammer network is determined by a user's Internet domain so that only individuals with approved email addresses may join their respective networks.  The service began as an internal communication system for the genealogy website Geni.com, and was launched as an independent product in 2008. Microsoft later acquired Yammer in 2012.