I just can't see this ending well. I actually <3 tumblr, but I don't know what their options are:<p>* They've raised a decent amount of money, which means they can't stay a strictly small 37 signals type company.<p>* 4,000 for virtual stickets isn't too encouraging.<p>* The themes are a nice revenue stream, but I don't think it's enough to keep them going.<p>* They've nixed premium accounts which could have been nice.<p>* They're 100% opposed to ANY form of advertising, even something that's innovative. I don't think they should be doing adsense, but I think there's actually room here for something innovative. They have an interesting audience and there's a certain sense of style on tumblr blogs. They could do advertising that doesn't suck.