Thanks to all of you who took the time to reply to this post. I feel much better after reading your replies and suggestions. In fact, I just added an autoreply to my contact link on PictureAndPen.com, which says the following. I hope this is sufficient, and I will do my best to answer each email over time:
"Thank you for contacting me!
As an author of many photography books, and the fact that I publish contact information in my books, I get a huge volume of email. Additionally, I have a contract with my publishing company that has me continuously writing a new book, I write weekly articles for several websites, and I am a professional photographer managing a small stock photo agency (www.NatureOfTravel.com) and shoot stock photography on a regular basis. I'm not trying to make excuses, just pointing out that, like you, I am very busy and have little extra time.
Unfortunately, this makes it difficult to answer email with complex technical questions in a timely fashion. Although I want to answer your email quickly, it is nearly impossible for me to do so. If you have sent me a question that requires more than a brief answer, I will add it to my growing queue of technical queries, and do my best to respond as soon as I can. In the meantime, may I suggest that you consider asking deep technical questions in my favorite Nikon Community forums at www.Nikonians.org. You will find me online there, and I will happily add my voice to the replies as often as I can.
I became an author and photography expert by spending over 12 years hanging around Nikonians.org. In my experience, it is the best source of photographic knowledge available today. The many experienced photographers in this friendly community will go out of their way to help you find answers to even the most difficult and technical questions.
I'll do my best to reply to your email as soon as possible. Thanks for your understanding!
============================================== Darrell Young (DigitalDarrell) www.pictureandpen.com "Better too many words than not enough understanding." ==============================================