I always read Lawrence Block's column back when he used to write for Writer's Digest. Having recently discovered his blog, I had to pass this along. In his piece from April 22, "All changed, changed utterly...." he discusses how much publishing has changed over his career and why he is self publishing his works.
It is very interesting reading--for both readers and writers---and well worth your time. As are his books if you are not up to date on his work. I am way, way behind on my reading.