Google has launched it's ppt viewer which integrates with integrates with gmail and allows users to view power point attachments as slideshow on computers which don't have powerpoint installed. We can use this functionality to convert any presentation to a slideshow. Simply browsing through all the slides makes the slides available in the flash format in the temporary directory of the browser. This works great for internet explorer and is not very usefull for firefox. For more advanced purposes you can use slideshare.net a service for creating and sharing presentations.