Do you know the best services for creating and saving presentations ?

My top the best services:

1. SlideShare 

The SlideShare service allows you to send your created presentations to the Internet, providing open or restricted access to them.

2. Mighty Meeting 

With this service, you can add presentations and videos to the cloud, and then show them almost anytime and anywhere, using any available tool (laptop, tablet, or smartphone).

3.SlideShark 

SlideShark makes it relatively easy to adapt presentations with multimedia effects to display them on your iPad.

4.Speaker Deck 

Speaker Deck allows you to upload slides as a PDF document.

5.SlideRocket

What about tools for creating presentations?

You can use: prezi, qwiki, slideshare, projeqt and sliderocket :)