Hey,

I have an image hosting site, link in sig, and the script behind it all is fairly basic. There is no back-end to it, no admin panel or anthing. So, I can manually check the image-directory folder to view new images and delete inappropriate ones.

But what I really want to be able to do is find out where these images are being posted on the web. Is there anything I can do to find this out? It'd be nice if there was a script I could put in that directory and monitor the content of that directory only, including all backlinks for all image files.

This would be good for marketing, see what sites are using it more than others, and its just kind of interesting as a webmaster to know these things anyhow.

There is no way to "just put a script into directory".

You can setup apache so that it logs requests into database instead of logfile, AFAIR it can write logs to pipe. Unfortunately apache is unable (or I am mistaken) to log requests to certain directory only, it logs for a whole vhost.

Another way is putting nginx on frontend to serve static files, apache on backend to serve scripts, then setup nginx + x-accel-redirect to pass certain requests (the ones to images) to a script that will log the request.