i would like to develope a live synced video presentation some where on the lines of this
http://www.adobe.com/products/acrobatconnectpro/?promoid=BPDEA
and this
http://www.stream57.com/streamline.html
just wondering how they all work and how to go about it?
do they use flash media server?
how do they sync the presentations with the video live
is there any tutorials on somthing like this?