Presentation woo!!!
People (including me) get tension when they are asked to give presentation on certain topics. But today with the advancement in technology Internet is giving complete knowledge on making an effective presentations.
While searching for such tips and tricks, I came across one site, which has the collection of publicly available presentations done by various people / organisations. These presentations are available absolutely free for viewing. If you want to download them, you just need to register with the site. You can even upload your presentation freely without registering to this site. They support presentations in ppt, pps, pdf and odp format.
The site name is http://www.slideshare.net/