Billy Cox praises the History Channel for getting it right in their "UFOs On The Record" documentary.
Area 51: An Uncensored History of America's Top Secret Military Base. Jacobsen interviewed former employees to gain inside information as to what REALLY took place there. But if the lackluster user reviews at Amazon are any indication, you might want to wait for a bargain bin price.
And over at Mysterious Universe, Michah Hanks posits whether some old school quantum physics couldn't have implications on spectral phenomena.