I attended David Ziser's seminar last night in Pittsburgh. He's one of the top artistic wedding/portrait photographers in the country.
The focus of his three hour+ talk was about simple but effective lighting, shooting, and a work flow that creates memorable images and makes your clients come back for repeat business. Additional he focused on self promotion which has calls "branding" and had many suggestions for promotional ideas to help grow his business.
The one reoccurring theme throughout the evening was "you can't charge more for sameness, but you can for a difference." This is a concept I always throw out there for photographers who ask what kind of subject matter should they shoot to sell at art shows. My answer is alwayds, something everyone else isn't shooting.
He really does get your thinking down to the basics, and it's applicable to any aspect of photography as a business.
His seminar web site and schedule is located here:
I try to attend every photography seminar I can fit into my schedule because you never know where you'll find something that helps your photography