Zoho offers a suite of online web applications geared towards increasing your productivity and offering easy collaboration. There are a number of tools. Here are just a few of them.
Zoho Writer - Online Word Processor
Zoho Projects - Project Management Software
Zoho Sheet - Spreadsheets. Online
Zoho Show - Online Presentation Tool
Zoho Creator - Create Database Applications
Zoho Meeting - Web Conferencing
Zoho Notebook - Online Note Taker
Zoho Planner - Online Organizer
These are available online and are free.