This document discusses the evolution of office tools from traditional offline tools to modern online collaborative tools. It describes how office work has transitioned from using typewriters, filing cabinets, and meetings for collaboration to using online word processing, spreadsheets, databases and communication tools like email. The document then outlines how modern Office 2.0 tools allow people to collaborate and share work online through platforms that enable archiving, accessing, sharing and publishing content as well as conducting virtual meetings and presentations. It provides examples of popular Office 2.0 tools and platforms including Google Docs, Zoho, SlideShare and Freebase.