The code will reveal nothing useful. Facebook doesn't use many algorithms that are important. Its friend recommendations are standard, and that's the only algor

The code will reveal nothing useful. Facebook doesn't use many algorithms that are important. Its friend recommendations are standard, and that's the only algorithm off the top of my head. What makes Facebook so effective is its existing userbase, its cutting-edge design, and its constant push for usability. I still haven't seen a company that would stand a chance against Facebook in those categories, and Facebook's tricks there are open for all to see.