Carol Fisher Saller (aka the Subversive Copy Editor), senior manuscript editor at the University of Chicago Press, answerer of questions at the Chicago Manual of Style Online Q&A, editor extraordinaire, and wonderful person overall, recently posted an insightful and interesting article called "What Copy Editors Can Learn Online (Maybe Not What You Think)" that I encourage both writers and editors new and old to read (in lieu of an original posting of my own).
To be brief, the three points she highlights -- the three things you can learn online -- are
- How not to copy edit
- What the experts are thinking
- How to solve almost any problem
My favorite part: When writing about looking through blog comments sections, she advises, "Lurk but don't touch."
Both good advice and a sweet turn of phrase.