GitBook - Modern Publishing, Simply taking your books from ideas to finished, polished books.
Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
MkDocs - Project documentation with Markdown.
WebEx - Cisco WebEx Web Conferencing, Online Meetings, Desktop Sharing, Video Conferencing
Docusaurus - Easy to maintain open source documentation websites
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.