Head over to Common Sense Journalism and read this post and this post. Then, head over to John McIntyre's You Don't Say and read this post.
When you think you have digested that information, head over to Testy Copy Editors and read this thread.
There are a lot of good points in all of the postings and on the thread. There is also a lot to think about as to what the role of copy editors is now, what it probably will be in the near future, what it could be in the future, and what it should be in the future.