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I've posted a few images, and for the ones that I know the source, I've pasted in the web address where I got them. I don't see that information anywhere on the page for the entries, though.
I don't know why, but I hadn't thought of checking the tracker until Deuxsonic mentioned it. It's not something I desperately need to be able to see, I just wasn't sure if I was missing something about it. I'll keep adding Source when I know/can re-find it.