The only good source of quality velomobile links that I can steer you too right now is on YouTube. Search for the great videos posted under ROAM 2011. Harry Lieben's blog Fruit on Wheels is also a great source of videos (he took many of the easily available ROAM videos).
No direct links for now as I am currently unable to search for videos. I am behind a firewall that is set to block everything on YouTube and Facebook as well as most blog sites.