Researching the philosophers of Silicon Valley, using mindmaps in 2D and 3D

What are the philosophical and cultural underpinnings of Silicon Valley? I’m trying to find out, reading and watching thinkers, historians, sci-fi literature, visiting virtual environments.

I’m trying to put some structure in my work using a mindmap, partially based on the book From Counterculture to Cyberculture (by Fred Turner):

In Second Life I’m putting up some media panels with websites or videos illustrating this – it helps me generating new ideas shifting those things around and walking around there, or looking at the panels with other avatars and commenting them.

My mindmap-installation in Second Life