I was just wondering how other people tackle the pubshing of images online to then refer to them on other pages with the img tag.

At the moment I have all these images published to one page under a folder and then a disallow line in robots.txt. It doesn't look good though right, a whole page of different images together that can be found at your web address? I just wondered if anyone had a different solution or different way of displaying all these images so they're still available?