PBS
Pbs: Lost Liners: Lusitania
PBS documentary about famous shipwrecks reviews the sinking of the Lusitania and the salvage efforts undertaken by deep-sea archaeologist Bob Ballard, who explored the wreckage in 1993.
Other
Lusitania Online: Homepage
Lusitania Online is the "Definitive site for information on the RMS Lusitania and her last Master, Captain W.T. Turner."