Fro you programmers, there is an intereactive activity in Second Life called the "Microsoft Challenge" located on Microsoft Visual Studio Island.
From the information notecard:
"10 eggs containing puzzles have been hidden throughout Second Life. As you solve them, your game piece will record the results. Solve all 10 to unlock the blimp and reveal the future."
http://slurl.com/secondlife/Microsoft/24/154/22/
Tags: Basic, Life, Second, Visual