Finally Google Docs have become richer.
Apart from the Documents and Spreadsheets, you can now create Presentations.
Starting today, presentations — whether imported from existing files or created using the new slide editor — are listed alongside documents and spreadsheets in the Google Docs document list. They can be edited, shared, and published using the familiar Google Docs interface, with several collaborators working on a slide deck simultaneously, in real time. When it’s time to present, participants can simply click a link to follow along as the presenter takes the audience through the slideshow. Participants are connected through Google Talk and can chat about the presentation as they’re watching.
If you are still not convinced about using Google Docs here is a video that might change your mind: