I am not an expert on intellectual property and trade marks, however I would guess as long as you attribute the photos to the owner I cannot see it as a problem.
In my technical writings I many times use information from other sources, always being careful to disclose the nature of the source of the information.
For Eric - I have dealt with Al Cosentino over the years going back to the 60s and 70s. Rightly so, Al should be proud of his accomplishments, and they are many. It is unfortunate that much of his literary talent is diluted by unnecessary personal tirades against people whom he thinks have some kind of ill will toward him, be it real or imaginary. I believe there is little respect to be gained by speaking ill of others. I so support the view that if you cannot say something nice about someone, then say nothing at all.
