As I was presenting these myself, I wasn’t actually taking the time to give a play-by-play in Plurk.  You can see my wikis for Session 3 and Session 4 if you want my take on them, though.

Another option would be to check out Selena Ward’s Plurk log of my Session 3 and someone else’s Session 4 (She didn’t attend mine because she’s already a PLN master).  Good stuff, there.