When I first started listening to podcasts, somehow--I don't remember the cause any more--I happened upon Jonathan Coulton's amazing "Thing a Week" podcast in mid-run.
Mr. Coulton had set himself the task of putting out a song a week. Sometimes it was a cover (but what covers! e.g. his great cover of Leonard Cohen's "Famous Blue Raincoat"), but most often it was an original song. All were, IMHO, at least good, and most are very good. In one case at least it was genius, namely the anthem of all terminally shy nerds, "Code Monkey."
I think of that artistic effort when I read Natalia's Second Life Diary. Natalia Zelmanov has, for 129 days at this writing and still going strong, come out with pretty close to an outfit a day, when she hasn't been writing tutorials so that you, too, can create clothing and shoes (and now hair). The outfits are accompanied by stories of the places in SL that inspire them. The results of her effort are available now at her store, Sirena Designs.
Seeing all that amazing work does have the drawback of reminding me that I've done close to none of the scripting and building I told myself I'd do when I first came to SL... so far, I've managed to be Mordecai's muse (if you ask him) or placebo (if you ask me). With tutorials such as Natalia writes, and that are available on the Grid, I have no excuse... so we'll see whether I actually do anything about it.