In this recent post, a Facebook employee discloses some of the internal workings of Facebook.
What frightens, but doesn’t surprise me is the fact that they track everything! From logins, profiles you click on, everything you post, like, comment, upload… and even delete. It all goes into 1 big database. This follows the “get-as-much-information-as-you-can” philosophy for social networks nowadays.
Ow and if you’re wondering why Facebook tends to crash a lot, I’m suspecting the 1 server not located in the US (but in London) has something to do with it.