Goes to show that...

..the more we know, the more we'd realize how little we actually know, as shown by the recent discoveries, just last year, of new human male Y-DNA haplogroups S and T, and the fact that now, geneticists lump M, (N + O), (Q + R), and S together into MNOPS, whereas previously, M, (N + O), (Q + R)(P) were classified as separate subclades of K.

The current Y-DNA Haplogroup Tree 2009

and here's the updated rough guide of their journey OOA: