@chriskrycho@rabryst@fifthposition Liveblogging is very lightweight and relies on S3+some ajax magic. Simple and *massively* scalable. (BTW, I'm also a Ghost backer—I use Octopress/Jekyll for my personal blog, but looking forward to trying Ghost!)
@chriskrycho@rabryst@fifthposition I'd have to ask Other Lee (the one with the beard) for the specifics. IIRC, we're leaning on Nginx's speed plus memcached and batcache + APC. Used to use Varnish, but now we just toss static stuff into a big-ass CDN.