Although this blog is not very technology centered, I have a great passion for human powered vehicles. Being a long-time owner of a recumbent bike and having a strong interest in ecology, I would certainly buy a Twike if I could spare a dime (or Aerorider or Mango — Walter Zorn on his Kreuzotter overtakes me always ;-) More recently when looking at various new recumbents I came across a great blog how to build a pedal boat to cross the Atlantic or a bike like ice machine to cross Greenland — surf to Adventures of Greg, yea, yea.