This time it is SlideShare. If this works, it might be very handy during the tour to share our slides, etc. Let me know what you think... better or worse than the Flickr trick a few posts back? It looks better to me. Also less work for me! The upload is a bit slow, which could be a problem if I have limited connectivity.
(And I have a few invites if you want to try the beta SlideShare service yourself!)