Starting yesterday (we held off on the announcement while we tweaked a few things for specific browsers), we introduced panorama screenshots for the front page of any production that has 4 or more screenshots. Hopefully this gives a much better at-a-glance idea of what a production looks like instead of just offering up the first screenshot, which may in fact be nothing more than a fancy progressbar for loading.
Some examples;
http://demozoo.org/productions/144805/
http://demozoo.org/productions/143011/
http://demozoo.org/productions/142855/
http://demozoo.org/productions/141417/
http://demozoo.org/productions/96484/
We hope you like it, and that it encourages more people to upload multiple screenshots for productions :)