Serving 10 billion page views on a few hundred servers, craigslist leads the internet industry by orders of magnitude when it comes to efficient use of electricity. The last time I checked we were clocking something like 175,000 page views per kilowatt-hour.
Compare this to single digit thousands of pages-per-kwhr for most large sites, which typically run tens to hundreds of thousands of servers.
Have said it before, and will say it again: pound-for-pound our tech team is the best in the business.
Apparently I’m not the only one who thinks so, judging by the fruitless attempts other internet companies (who will remain nameless for now) have made to pluck them away.