Almost everyone loves free.  Almost everyone hates paying several hundred dollars for Microsoft Office.  Well, fellow bottomfeeders unite!  Here are some Free alternatives to Microsoft Office:
- ThinkFree – Each account gets 1GB online storage, document collaboration and more.
- Glide – Slick Flash interface and lots of storage space.  Plus, in my opinion, the leader in terms of online document security.
- Google Docs – Good offering with easy to use interface.
- Open Office – The best free competitor to Microsoft Office for use offline.  Installs on your computer.  Sometimes loses a little information when translating a Microsoft document.  No macro support.
- Zoho –  Online documents are just one of the features they offer.  Tons of productivity tools that are free with limitations.
I might have missed some, these are just the ones that I personally have used.