I have been using quite long and descriptive file names for my jpgs and gifs and was just wondering if this has any effect on the loading speed of images? Or maybe the complete url of the file - if that is long will it inhibit loading time?
I don't think that it will have any effect on the browser request to the server for the image, but long lengths will add a little bit of weight to your html page. Each character in your image name will add a byte to your overall html page size.
A thread on something similar here [webmasterworld.com].