1. Why you should use SlideShare?

2. Share your presentations with the world. Upload Powerpoint, OpenOffice or PDF presentations. Share publicly to reach millions of global viewers. Share privately with colleagues, clients and on intranets, private websites.

3. Find thousands of interesting presentations. Download, favorite or search presentations.

4. Create SlideCasts. Sync audio with your slides. Create webinars, musical presentations, slidetoons and more!

5. Find friends or make professional contacts. Find people with interesting content. Grow your professional network.

6. Join Groups about interesting topics or create your own collections of presentations using groups.

7. Check out talks from Events you missed or create your own event to spread the buzz, invite registrations, archive presentations, etc.

8. Participate and vote in Contests.

9. Add SlideShare widgets to blogs or websites.

10. Share on social networks, blogs and bookmarking sites.

11. If you are a developer use the SlideShare API to create cool mashups and your own custom applications.

12. It’s free. Sign-up now, if you are not already on SlideShare!