If programming books read like why's (poignant) guide to ruby, I would smile more often. (Related: why the lucky stiff)
If you use del.icio.us, flip: Extispicious, is an "automatically recombinant memeplex. [...] Tags are scraped from a quiet corner of del.icio.us and cached for a day."
My Noosphere Map
Chef Quix' Noosphere Map
It started with this diagram and this script.
Extispicious visualizations can get very complex. (Check the second image.)
I use spurl to ping my links to del.icio.us. Manually entering a category, with each del.icio.us update, would lead to a more complex map with low-weighted links.
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