Marathon Press is a set of tools that could help you drive the business to your goals. It provides several lines of services:

• Promotional Printing - Custom designed cards, brochures, flyers, presentation folders, multi-page publications, preproduced portrait promotions and more.
• Internet Services - Website creation and hosting for professional photographers. Services include session proofing, shopping cart capabilities and marketing and sales support content.
• Marketing Programs - Cost-effective and efficient photography marketing programs that create a consistent and custom-designed marketing message.
• Publications - An ever-increasing list of photography publications by some of the most successful authorities in the professional imaging industry.
• Schools and Events - Marathon Press is the school and event photographer's one source for today's cutting-edge products and services. This complete product line features the industry's highest quality printing and creative designs teamed with superior customer service.

The galleries of beautiful pictures created by Charles Miller.

Sometimes we encounter situations when simple masking/selection doesn't work or is too time consuming to do it right. That's why professionals like to have a whole arsenal of tools to make that perfect selection. Here is another trick to tuck under the belt - Masking with Calculations (PDF).

This article reveals technology that could prove that an image was taken by a cerain camera based on the "fingerprint" of the camera:

In technical terms, Fridrich and her co-inventors Jan Lukas and Miroslav Goljan found that every digital picture is overlaid by a weak noise-like pattern of pixel-to-pixel non-uniformity. As with fingerprints, that digital noise pattern will be consistent among all images taken from the same camera.

Though this technology is intended to be used against child pornography (as it exaplained in the article), I think that the same technology could be used to prove the copyrights of photographers on their photographs. The only thing is that the cameras should be legaly registered (the fingerprints scanned). So later on when the camera changed the owner, you still can prove that an image was taken by your camera. Well, you got the idea.

There are different papers, printers and inks. And, of course, there are different conditions where the prints are stored or diplayed. All of it affect the longetivity of the print. You probably heard or read about different lifespans of a digital print, but were those statements as true as it realy is? The following article (in PDF file) casts some light on when you can expect the skin tones on your photo turn green (or yellow?).
Want to learn more? Here is the list of articles for you.