Google Docs & Spreadsheets
http://docs.google.comGoogle Apps
Google Docs & Spreadsheets is a Web-based word processor and spreadsheet application offered by Google. It allows users to create and edit documents and spreadsheets online while collaborating in real-time with other users. Docs & Spreadsheets is the result of two services, Writely and Spreadsheets, and they were merged on October 10, 2006 into a single product.
ThinkFree Online
http://www.thinkfree.com
ThinkFree Online is a free online edition that runs Write, Calc and Show in a browser using a mix of Java applet and Ajax technology. Each user is allotted 1 GB of online storage space for saving documents. ThinkFree Online lets users collaborate on documents with others, publish to a blog or the web.
* Accessibility of documents and applications from any computer online. * Microsoft Office compatible * Blog publishing * Online storage and backup * Supports inserting images from Flickr * Print, Preview and Publish capability * Export files to PDF format without any addtional software. * Fully online