Gossip Girl Recap "The Revengers"

I had nearly forgotten that Gossip Girl still hasn't resolved its series-long mystery — the identity of Gossip Girl herself. After Nate's dad shows up to give Nate some white-collar-prison advice (love the throwback, BTW), Nate is ready to try something new to save The Spectator. Sage convinces him to use his trump card and reveal who Gossip Girl is, once and for all. Get your final guesses in now.