You can go to YouTube, Flickr, and many other video posting sites, type in "shark" and see literally thousands of video clips (some of them are even mine). Most are from home videographers wanting to share their shark diving experiences.
WildAid realizes that not everyone watches those online sites, that traditional broadcast avenues still have some clout, so they have a series of shark conservation PSAs (public service announcements) that have run worldwide. However, you can also see them grouped together online at their website.
This one, in particular, got to me. It succinctly shows the irrationality of shark fin soup - bleached of all nutritional value and flavor, the fin is really just for "show" - to the tune of at least 40 million sharks per year.
It was also encouraging to see WildAid using Asian and foreign celebrities to promote shark conservation, since most of the shark products are destined for Asian markets worldwide. Take a look.