I'm loving it how Fb makes a campaign about open data, yet blocks indie search engines like findx.<p>Very informative post mortem; also includes the obligatory "incredible" phrase.<p>Edit: didn't know Github, too, only allows Google and Bing. That's quite the show stopper for gh IMHO. I guess we need a reciprocal data agreement of sort such as "we don't link to sites which don't allow crawling"