Hello RangerRick. Two members of this board (Pliedes and Titan) spraypainted the name on the bridge at IU...they both attend IU.
For more information on the bridge painting itself, go
here.
To directly answer your question, Nubblies.net is a message board full of mostly 15-20 year olds that like to shoot the shit and talk about various topics.
If you browse the board a bit, I could almost guarantee that you'd find a topic that tickles your fish.
Welcome to Nubblies.
-Ugly Bastard