Normally I read Daring Fireball just to see what the Apple Apologists Dedicated Users have to say about things going on, but there’s also some other good things that come through, including a post by Paul Graham entitled “The Top Idea in Your Mind”. Teaser paragraph:
“I realized recently that what one thinks about in the shower in the morning is more important than I'd thought. I knew it was a good time to have ideas. Now I'd go further: now I'd say it's hard to do a really good job on anything you don't think about in the shower.”
YMMV, definitely, on how much you agree with the particulars, but it’s an interesting read. Check it out.