Call for Artists, Making Money at Juried Art Fairs, Craft Shows and Festivals
I can answer some of your questions.
first of all, collectors don't buy photography. People buy photography as a less expensive (than paintings) way to decorate. Photographers went to canvas because the cost per size and handling ability is much better than framed under glass. But you will run into shows put on by art centers that have traditional painters on their board who will not like photographs on canvas because they feel threatened by the perceived competition. unframed matted prints in bins can be approximately 75% of your sales if not more if you price correctly.
Another issue when first starting out is printing too many untested images that you'll end up throwing in the trash over time. Here's an article I wrote that addresses that issue.
That's a web site only photographers visit. There's absolutely no correlation with selling prints to the public.
No. Nothing like doing an art show and seeing hundreds or thousands of people walk by. Make sure to observe which images people are drawn to even if they don't buy them. Do that by watching which pieces are handled in your unframed bins.
Sometimes matting a 5x7 in a 14 x 18 or 16x20 mat, especially when presented in vertical orientation, is spectacular. The larger space around it gives the image greater presence. Has to be the appropriate image, like a close up of a face or something. Sometimes we mat small horizontal images in vertical mat orientation. You can even do 6x9 images this way. Make sure you don't center the image in the mat, but leave much more space at bottom. You might benefit from reading Picture Framing Magazine and finding some of the specific books they've published discussing matting techniques. We often use three or more images in a set and frame them this way so they go together on a wall.