SlideShark - Online Storage, Sharing, Presenting for PowerPoint (Now Available iPad App)

SlideShark is an online service that hosts your PowerPoint presentations and allows you to share them via social networks or email and allows you to access them from any internet connected computer.  SlideShark also has an iPad app.  This app could serve as a very useful tool for those educators who like to use their iPads in the classroom as their teaching tool.

SlideShark's iPad app let's you access your uploaded PowerPoint slide presentations and present them on your iPad, either alone or on a projector via VGA cord or Apple TV.  SlideShark has easy controls when presenting your PowerPoint presentation and (I like this) allows a "pointer" simply by pressing and holding on the slide; which presents a very visible red dot which you can move around on the iPad and presentation view to assist in creating focal points.

The web application as well as the iPad application are both very easy to use.  Best of all the account and app are both FREE.  You are limited to 100MB of space with your FREE account, however I think that is plenty of space for the casual user.  For the heavy user, upload only your critical presentations.