Some good articles about writing/publishing that I recently came across:
This one talks about the fact that publishing a hit book is still a mystery and why. I love the line about it being a bad idea to leave business decisions up to people who go into their line of work (publishing) out of love, not money.
I think Poetmom will especially appreciate this one. It's about the importance of blogging for musical artists (and much of the info is relevant to writers). The lede profile is of a blogger who wrote a song a week for a year (much like PM's poem a day for a month project).