Who has been suggesting to you to make the move to profiting from your photos this way? People on the forum? Friends? Because those aren't the people you're trying to sell them too. You're trying to sell them to the kayakers, right? Have the kayakers come to you asking to buy your photos? If not, how do you know they want them?
That's the question here. Does your target market want what you're selling? If they don't, can you add enough value to what you're selling to make them want to buy it? There's not a lot of value in being sent a link to a bunch of Flickr photos and being told, "If you want some prints let me know, whenever." They don't even know what print options are available, what they cost, or what makes them different from anything else, or why they should get them at all. There's no call to action. There's no emotion. There's no incentive for someone to give their money to you when they already have the photos and could easily do their own prints for cheaper and faster.
How many times has someone sent you an e-mail to you and offered to sell you a photo of yourself doing something and how many times have you bought that photo? Would you buy that photo? If the answer is no, why do you think other people would do it?
Making money requires effort and time. Is the amount of effort you'd put into this worth what you'd potentially make in profit?
Is there a different way to make money from your work, one with more potential? How do other sports photographers make their money? Specialized portrait sessions? Commercial sales?
Think about those photo people at places like the zoo or the theme park. They take your photo and try to sell it to you right away. Those photos aren't very good, but they do sell them. I've bought those types of photos before. Why? Because it's instant gratification and an impulse buy connected to a memory I am still experiencing. If a customer leaves the spot and says, "Well, I'll buy it later," are they ever really going to do it?
Trying to sell people photos after an event has happened gives them more time to choose NOT to buy. With a product like this you want to lessen that time as much as possible while eliminating buyers remorse. If I get home after buying a zoo photo and all I can think about is the expensive price I may be motivated enough to get a refund or I may never buy again. But if that photo wasn't that expensive? Whatever, it's only 10 bucks.
Some products have considerable value to the customer and time and consideration motivate them to purchase. In some instances, purchases are impulse buys and time reduces the desire to purchase. I think at this point you're dealing with the latter, so how do you get to the former and make your photos valuable enough to buy?
