Hi guys,
I finally found time to record the first episode of LEVEL-DESIGN.org Videos. In this episode, I talk about a really important design principle I use: Familiarity. Here's a link to the video page:
http://level-design.org/?p=3377
I already prepared scripts for the next episodes but I have no idea when my private life will let me record it 
Anyway, enjoy the show and let me know what do you think!