http://www.theguardian.com/world/interactive/2013/jul/31/nsa-xkeyscore-program-full-presentation </p>
http://techcrunch.com/2013/07/31/nsa-project-x-keyscore-collects-nearly-everything-you-do-on-the-internet/
Just saw this today, apparently it's a look into the software, XKeyscore, used by the NSA while compiling PRISM data. I haven't explored too much more into yet, but just wanted to share the articles to let everyone have a look for themselves.