Good work. It would be awesome if you could add an insert (free form text) field, along with file upload. Additionally an up-vote or down-vote would rank the "best" rated maps that people have encountered.
I'm still in the process of trying to efficiently generate maps, when that's all sorted out and running smoothly, I might think about building some fancy website around it.
If anyone feels like he/she should go ahead and make the website in advance, let me know :)
Edit: Made a very basic look-up script because the directory was not really organized efficiently.. Just enter a seed and click Search. Remember that I'm generating 4 worldsizes for each seed, so the current reported number of 40 images means it's only 10 seeds.