Using mobile phones to communicate between the real world and Second Life
Which in turn reminds me that Sweden is setting up an embassy in Second Life.
And of course, don't forget the Mainspring [ Amazon ] ARC contest.
garyomaha on the unbearable lightness of books.
saycestsay with some kind words about Stemwinder.
I'm also taking suggestions for a Mainspring button. "I've been Mainsprung" comes to mind.