Ideas and information on modular robotics specifically humionoid but not exclusively Answered

Hello my name Ian Alex,
I have a very early stage idea for a modular humioniod robotic development platform.
I'm looking for information, a point in the right direction to all things modular robotics.
Books, threads,forums, drunken scribblings on a napkin I don't mind.
What I would really like to do is a open source collaboration, where people can make either the whole thing or just indavidual modules.
What do you think? Great idea? Dumb? Totally unachievable?
All comments and replays welcome, positive or negative

Thanks in advance

Alex