Do it online via authorSTREAM (http://www.authorstream.com/).

authorSTREAM is a powerful online presentation sharing engine that not only allows you to upload your PowerPoint presentations online for free, but also assists you to share them with your friends, students or co-workers located across the globe.

authorSTREAM is a great online community that gives you access to numerous presentations on varied subjects uploaded by community members. You can find exciting presentations on just about any topic, rate them, post a comment and even embed them in your blog.

authorSTREAM is for everyone: Educators looking to deliver their presentation to students over the web, Entertainers trying to reach out as many people as they can, Friends and families seeking to keep in touch by sharing their picture slideshows and greetings, Co-workers and classmates attempting to exchange content such as project presentations, homework assignments etc.

Registration with authorSTREAM is easy and is all FREE. authorSTREAM currently support PowerPoint files (PPT & PPS format) only.

Have Fun!