Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
CCProxy - Want to share Internet connection? Get every computer online through a single Internet connection?
Bit.ai - Bit is a smart real-time document collaboration platform for teams to create interactive documents, manage digital content and track document insights.
Apache Traffic Server - Fast, scalable and extensible HTTP/S 2 and 1.1 compliant caching proxy server.
Apple iWork - iWork is an office suite by Apple.
FreeProxy - Feature summary from website:* Internet connection sharing with demand dialling