At downlode.org/etext/patterns, there is a nice summary of A Pattern Language by Christopher Alexander. Interesting to browse, I think I'll need to get the real book too.
For the ones more interested in eastern culture, a look to academic.bowdoin.edu/zen is recommended. It gives a nice overview of Japanese gardens (with their cool dry gardens). Lots of images (unfortunately rather small).
Why didn't anyone tell me about M-x grep-find before?
NP: Nirvana—Where Did You Sleep Last Night