I wouldn't be too concerned about most of it unless you use photos that have to be paid for.

When it comes down to the nitty gritty we are a bunch of friends and people online who are gathering together to write up a group roleplay. We aren't making money off this and most of the time people use images as a reference for their character so others can get a visual idea of what it is that the writer is thinking of.

Coming from the GFX signature area, I can also say that if people can get away with the amount of images [i]they[/i] steal, re-photoshop, upload, and call their own creation, I'm pretty sure simply referencing an image is something minor.

As for sources? Google Images, Photobucket, and even Tumblr will have some stuff.