Google Docs

Google Docs - More than file storage
Get 1GB for storing your files, presentations, spreadsheets, images or any other type of file and make them available freely for anyone to download. The links are direct access files, which means that you can publish images to your blog with the quality of a Google server.
But Google Docs is more than just storing files, with it you can edit your documents from any computer, making it possible to start your work on one computer and finish it in another, which to me is a reality at my college.
Currently Google Docs's performance received good improvement that in my test, to edit a Word 2007 file that I uploaded, were downloaded only 460kb, which are all the page's pre-defined tools.
Oh, and if 1GB of storage is low for you, then you can increase this space by paying only 25 cents every year, "measly" for anyone who understands the true importance this online tool may have to those who know how to use it.