I had a very long, hard road designing my new, small data center. All the visible activity is in large data centers.
Ironically, if cloud computing really takes off, we could see lots of small data centers, with fat pipes to clouds.
Some tasks won't move to the cloud, ever. We'll need small data centers for those tasks.
Would be nice if someone created guidelines for designing small, green, data centers.
If I had a few months uninterrupted, I would write those guidelines, maybe as a Wiki so everyone could add knowledge.