I am currently finishing up an Online course, through the Picture Perfect School of Photography, on taking images for Stock Photography. This is an interesting business, which I was totally clueless about. A member of our camera club has been selling stock images for a couple of years and did a presentation on the process, and results. Intriguing. Basically you take a certain "type" of photo, depending on the agency you're interested in, upload a few images for approval, and once you're "in" then they handle sales, taking a cut of the profit. The idea is to sell your images multiple times, so your sales increase over time. Interesting.
Here is a sampling of one type of image. I have noticed that the white background is important for a lot of stock images. Not something I typically shoot, this has been the most difficult. But I enjoy the challenge so will keep working at it, I think:).
What are you trying that is new and different?