This guy's got some awesome stuff swirling around in his head. He only blogs a couple times a year, but its always a relief to see he's still making progress:
http://www.rohorn.com/
Current project is a recumbent, EX500 powered, track bike:
He's got quite a few recumbents in his past. From little go-ped racers to electric bikes:
Then there's this HD sportbike:
Not a whole lot of tech info, but its great stuff to look at and get inspired by...