Lockheed P-791 hybrid airship

Although the P-791 is "hybrid airship" and therefore only partially "lighter than air", the youtube video is pretty neat.
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"Blubber Bot" art installation in Denmark: 

Beluga Pod exhibit

Coverage on make:blog

Make: Vol 12

Cover article--"Invasion of the blimp bots"

Ostraciform air ship

See the video at Makeblog

Frenchman attempts human-powered blimping across the English channel

Courtesy of Wired, via blog.Makezine

You know it's hard up here for a blimp. Or so says Stephane Rousson, a 39-year-old Frenchman who's hoping to cross the English Channel in a homemade, pedal-powered airship. As a child, he was captivated by the Gossamer Albatross, the first entirely human-powered craft to fly the turbulent stretch from England to France. Hoping to repeat that 1979 feat, Rousson acquired Zeppy, a crank-driven zeppelin. Built originally by Jean Marc Geiser and his son Luc back in 1984, the craft's forward momentum and steering come from a pair of 10-foot movable propellers, churned by a recumbent bike hanging from the ship's belly; Rousson modified the chassis to improve its stability and power. He has logged more than 30 hours of flight time, including a four-hour hop around the coastal town of Toulon. But so far, no English Channel. The problem: Breezes over 5 mph bat the blimp around like a cat playing with a moth. Also, the heat of the sun raises the temperature of the helium in the Zeppy, which could cause it to explode. With the channel typically experiencing only three windless days a year, Rousson will have to time his five-hour, 34-mile flight perfectly. He plans to try again in September. Here's hoping the attempt doesn't go down like a lead balloon.