More Slideshows

Apart from Slideshare there are other sites where you can share your slideshows.

SlideBoom
SlideBoom gives you a place to share your PowerPoint presentations with the world. SlideBoom is free and everyone is welcome to publish their slideshow here. You can find a lot of useful presentations and insert them into your blog or web site.
The site's social feature lets you find people with similar interests, leave comments, and rate their presentations.
What makes SlideBoom different?
With Slideboom, your original presentation keeps its features after conversion. This includes:

• content style
• animation effects
• transitions
• embedded audio
• embedded video

280 Slides
280 slides is a site to create and share your presentations. You can upload your existing PowerPoint presentations and import them into 280 Slides and with a single click you can download a copy of your presentation in your favourite format, including Microsoft PowerPoint. One great feature of 280 slides is that you can add photos and movies to your presentation directly from popular web services like Flickr and YouTube.


SlideRocket
SlideRocket gives you powerful tools that let you easily make presentations that look better than PowerPoint, and it lets you manage and share your slides among your own presentations or between users.