Create basic documents from scratch or start from a template.
You can easily do all the basics, including making bulleted lists, sorting by columns, adding tables, images, comments, formulas, changing fonts and more. And it's free.

Upload your existing files.
Google Docs accepts most popular file formats, including DOC, XLS, ODT, ODS, RTF, CSV, PPT, etc. So go ahead and upload your existing files.

Familiar desktop feel makes editing a breeze.
Just click the toolbar buttons to bold, underline, indent, change font or number format, change cell background color and so on.

http://www.google.com/google-d-s/tour1.html