The So-Cal Fire Poster Project
I'm sorta proud of this site: It's a non-profit site that's selling posters donated by artists around the world to help victims of October's Southern California wildfires. It's entirely driven by WordPress MU.
Basically, there are two blogs set up: one is the actual blog on the site, and the second is used to manage all the posters. The "two blogs, two template sets" configuration is why we chose MU instead of regular WordPress.
Each poster is an entry on the blog, each with a title and description. Each post also has some custom fields that manage the artist's name, and the item number that our merchant partner uses in the shopping cart process.
WordPress' templating system makes building sites like this super easy. I can add new posters in seconds. Combined with Photoshop actions to automatically resize the poster images, updating the site is a breeze.
Best of all, the "catalog" pages showing all the posters are updated automatically, including "syndication" pages that bring the newest posters to the homepage as soon as they're added to the site. The homepage just grabs them with a simple PHP include statement.
Adding a "featured" poster to the homepage is as easy as adding the post to the "featured" category. One check box, and WordPress does all the heavy lifting.
Another reason I post here is more to raise awareness of the site, too! It's a great cause, and if you find a poster you like, please consider buying it and helping out needy families.
Thanks WPMU and the community at large! Your help here in the forums, with documentation, and everything helped me put the site together.
Cheers!