"But there are open source projects that are tackling important Web 2.0 problems "up the stack." Brad Fitzpatrick's LiveJournal scaling tools memcached, perlbal, and mogileFS come to mind, as well as OpenID."<p>memcached et al date from well before the annoying, useless, vague term "Web 2.0". as does Lucene, Nutch, and other interesting work Cutting has done.<p>collaborating on software that's only useful if you have servers that are getting tens of thousands of hits a day is hard. it automatically reduces the pool of potential participants to be very small.<p>fuck Bill O'Reilly for wanting to turn everything into something that relates to his dumb conferences/speeches/whatever. and fuck "software as a service". jesus.