Four short links: 20 May 2009

Distributed Proofreaders Celebrates 15000th Title Posted To Project Gutenberg -- a great use of our collective intelligence and cognitive surplus. If I say one more Clay Shirkyism, someone's gonna call BINGO. (via timoreilly on Twitter) Datacenter is the New Mainframe (Greg Linden) -- wrapup of a Google paper that looks at datacenters in the terms of mainframes: time-sharing, scheduling,... http://ping.fm/zf7K9