I'm kind of in the same boat as you, just got mine in november.. this being my first car worth getting to know I've been thirsty for all the information I could possibly soak up.. since you read the manual already, spend some time just reading these forums! Seriously, just pick a topic and dig in for a couple of hours just seeing what everyone else is doing and talking about. If you're anything like me (and since you read that whole damn manual, too, i suspect so), you'll find a lot of interesting topics and start digging into their finer parts, learning lots along the way!
That and of course, the car meets
For whatever reason, I was super intimidated to go to my first car meet.. i really don't know why, and hell I still am.. but I met some of the coolest people there who had absolutely no problem entertaining my questions for half the night!!
Grats on the new car