
Drupalize.org launched a couple of days ago using Drupal 6.
Here is the idea behind the site:
Drupalize.org is a live experiment in project management and brainstorm-to-reality tools for deploying Drupal-powered websites for a variety of web projects. It is also about bringing your Drupal-powered web entities together into an automated network using core modules. Focus is directed toward creating Drupal instances that are as light and friendly as possible. These single "websites" stand alone in content and topic while feeding symbiotically into a greater Web entity.
A couple of articles exist thus far on the site:
Installation of Hearth.ws
Drupalize.org
A really sweet Drupal theme called Dreamy gives it the feathery look. A great feature this theme has is the fact that the taxonomy (categories) are by default hidden inside of an AJAX-enabled clickdown thingy. That means you can click on the "Tags" link and it opens up the categories right there on the page without loading a new one and keeps the site nice and clean and concise. You can pack it full of search-engine friendly categories and they don't make the page look trashy.