By means of Michael Stepanoff blog, I found an excellent document – “Inside LiveJournal’s Backend” by Brad Fitzpatrick of Danga Interactive fame. The document is a set of slides from the presentation at Oscon 2004. It shows what it takes to make the site like LiveJournal.com from a technical point of view. There are some nice ways of handling high load described. Interesting to note that everything they’ve used is Open Source software – Apache web server, MySQL databases, Perl programming language (with some C), etc.