Web 2.0 at school

www.slide.com

Make a Slide Show and tell the world about yourself.
Host your photos on Slide and link to your profile or blog.
Friends add comments, pics & more. You take it anywhere.
Watch any Slide Show as your Screensaver.

www.sliderocket.com

SlideRocket is a web application that provides everything you need to design professional quality presentations, manage and share libraries of slides and assets, and to deliver presentations in person or remotely over the web.

Public launch is coming up very soon. You can request an invitation at the moment.

It looks very promosing. Take a look at the product tour here.

www.slideshare.net

A place to share & discover slideshows.
Upload your slides. Share with a link, embed in a blog.
Discover interesting slideshows. Tag, comment & have fun.

www.spresent.com

Spresent is free Web-based presentations application built with Flash. Create and edit high-quality Flash presentations online. You can send presentations via e-mail or publish on your web site or blog.

www.thinkfree.com

Excellent Java-based presentation application that feels much like Microsoft Powerpoint. Create rich presentations and play them through the online editor or by graphic. You can also save your presentations for viewing in Microsoft Powerpoint and share them with others online. 

show.zoho.com

Create, edit, publish, and show presentations. Invite participants for remote presentation.
Share your presentations with your friends, colleagues and relatives.
Import Powerpoint files in both read-only and read-write modes.