• http://docs.google.com/

Folded neatly into Google Docs, Google is at long last fielding its very own web-based presentation application, the other major contenders I am aware of being Zoho and ThinkFree. (I omit SlideShare because it does not provide editing functions.) The PowerPoint .ppt file I imported to Google looked very nice--allowing for the customary flattening of slide animations and multi-media content, of course. You can edit an uploaded presentation without the quirky glitches that plague the competition. You can also create a presentation from scratch using one of a handful of passable themes. Overall, the editing environment is minimalist and intuitive, with great collaborative features including versioning and simultaneous editing. On top of that, you can purportedly run a slideshow live over the web and communicate with your audience using a chat session in sidebar. That feature did not work for me in testing, but one must make the usual concessions to an application in beta. Google falls short of the competition with regard to 'mashability.' There is presently no utility to generate code for embedded iframes or objects. Even still, it makes a dramatic entry.