I want to

LibreOffice 4

If you're looking for a free office suite of resources such as word processor, spreadsheet, presentation software, database and more, you might want to take a look at LibreOffice 4. It's entirely free, and is a well known and robust package. I've not tried it myself though, so I can't vouch for it personally, but it looks really interesting. If you've got any experience of it - let me know via comments!

Web Meeting, Document Sharing | ShowDocument

ShowDocument. Upload, view and share documents, web pages and images stored on your workstation or server. Exchange ideas and information with colleagues via a real-time interactive whiteboard. Communicate and collaborate with team members by simultaneously writing and editing text. Review, analyse and annotate web pages concurrently by utilizing a shared browser.

Peepel Online Office

Peepel Online Office. Word processor, file sharing, RSS feeds, messaging, collaboration, contact management, browser windows and templates.

FlySuite

FlySuite is a combined package which acts as word processor and spreadsheet. From the site -

With FlySuite applications, you create or open full-featured Word documents & Excel spreadsheets

(Microsoft format). You can share your online documents or send            offline copies to the people you want to work with.

Your collaborators don't need any software to view or edit your work, because FlySuite is automatically  and freely  launched when they open your files. You can be alerted in real-time when a collaborator  opens your document and start a conference chat

in FlySuite applications.

Ajax13 Free online word processor

Ajax13 is a web-based word processor that can read and write Microsoft Word and other standard document formats. Anytime you need to open, read or write a word processor file, simply point your Firefox browser to www.ajaxwrite.com and in seconds a full-featured program will be available for you to open, edit, print and save.

ajaxWrite has been designed to look like Microsoft Word, making it easy for anyone to start using it without needing to learn a new program. ajaxWrite also handles all the popular document formats so it's easy to share your files and collaborate with your co-workers and friends. Once finished with your document, you can easily save your work right to your hard drive. This keeps you organized and works in the same way that you're already accustomed to.

ajaxWrite works from a Firefox web browser on any operating system and on any device, no matter where you are or what computer you're using. And because the application itself lives on the web, thry handle the updates automatically so that you don't have to deal with costly upgrades or getting stuck with old versions. However, if you use IE this isn't going to work for you.

Jacuba

Jacuba gives you access to a spell checker, accounts package, spreadsheets, image resizer and charts generator. All free, all online.

Desktop On Demand - Your personal and secure online desktop

Desktop On Demand - Your personal and secure online desktop. This actually looks very interesting - access your own pc, browse the web anonymously, word processor, spreadsheet, storage and so on. Free, but pay for extra disk space over 1GB

huddle

huddle. This is a network of secure online spaces that combine document, project and team tools with the simplicity of social networking. Pricing from £4.99 a month. Freebie version also available.

Scribd

Scribd is a free online library where anyone can upload. Use their embeddable PDF player to publish and view documents right in your web browser.

Solodox

Solodox provides access to word processing, projects and collaboration.