What do you guys do when you find an image from your website being used on another site without your permission? Unless the pictures are truly registered copyrights, I think the little (c) we put beside pics means nothing.
I recently found a Japanese site that has used 4 of my images. Two of them were taken from my site and were credited. I am fine with that. However, two others were taken from a forum board so I probably didn't mark them (although the Japanese site did modify my pics - inverted the pics, changed the credit to their own font, etc. so they may have removed the mark.) I wouldn't have minded if they credited the board they took them from but they didn't. To make matters worse, the posts containing the pics are no longer on the original board; but I still have the digicam originals on my hard drive.
I sent a polite email asking them to mark my website on the pics or to remove the pics.
Anyway, I suppose, despite the irritation, it's not really a big deal. It's an informational site and at least someone likes my photos

Has anyone encountered this and how did you resolve it?
BTW, I am only mentioning they are Japanese because I don't speak Japanese. That made my email that much harder to write. I had to use Babelfish and really simplify the text so that my email made a little sense. (I sent it in both English and Japanese.)