Being one of the contributors, I'm just a little biased, but I'm a big fan of the design Jeremy Caldwell created for our new joint project, http://www.Nerdliness.com. It's clean and pretty, does a great job of letting the content come through.
The idea is to let us three nerds share some of the solutions we've created to solve actual problems we've faced on the job. The level of content will range from beginner to advanced, depending on the particular issue, but we think others could tweak some of the stuff we post to solve their own dilemmas.
We're still in the process of building, but things are coming along smoothly. Jeremy built the template from the ground up and we're using various Drupal modules as we get things going. Of course, we use CCK, Pathauto, and Views, but we're also playing with Google AdSense Injector, XML Sitemaps, Devel (on the dev copy), GeSHi Filter, and FCKeditor, among others.
Most are in their native forms, but we've modified a few things to meet our specific needs. For instance, we had to make some tweaks to the Google AdSense Injector to make it play nice with our custom content types (see http://www.nerdliness.com/article/2007/08/08/drupal-adsense-injector-mod...). We've also had to play around a bit with the template to get the different lengths of teasers we wanted on the front page (http://www.nerdliness.com/article/2007/08/20/drupal-tweak).
Anyway, we appreciate any comments, especially the nice ones. (Jeremy really needs those... you know how sensitive those designer-types can be...).