For more information on SA3, Sharks on Film recounts in detail all of the shark attacks and victims in the movie chronologically. If you haven't heard JB's famous "line" in the film, at this site you can hear his brilliant pickup line in a perpetual loop. Listening to it for more than an hour may be dangerous to your health however. You might become convinced this line will work and try it out in the real world.
In more serious news, there is a new budding site that deserves a shoutout called The Innuendo Squad. It is an image site dedicated to Captain Jack Harkness in all his glory.