Example of a effective flash presentation (even if you disagree with the content): http://jerrypatterson.mstsite.com/movie/index.html - many clever little communication tricks woven into this. This manner of presentation should be used by us when appropriate. Flash clips are relatively cheap and easy to make, can be easily e-mailed around, are self-containing and can communicate the message very strongly. Example of a transhumanist presentation (not as flashy): http://transhumanism.org/images/uploads/transflash.swf

Center for Responsible Nanotechnologies has a number of very well-made presentations on nanotech made with Powerpoint. We should strive to achieve the same level of quality.