I have been involved with the launch of a Drupal-powered website for a project called Grow Clean Air. It was a simple Drupal 6 deployment, with only poormanscron, tagadelic, token and pathauto modules. The theme is a variation of Interactive Media.

Here's some info about the site content:

This website is the latest incarnation of an effort that has been going on for nearly a decade to simultaneously reduce the global carbon footprint and empower farmers in Africa and India with sustainable agriculture and health practices.

The main things you can do at Grow Clean Air are:

Simultaneously Offset Your Carbon Footprint and Empower Communities in Africa and Asia to Change Their World and Yours
Demand more transparency from the exploding carbon market!
Discover the Facts about the Exploding Carbon Market
Offset your carbon (CO2) footprint by purchasing credits from India and Africa (Kenya, Tanzania, Uganda)
Find a List of Recommended Carbon Calculators

Here's a snippet from their site:

Don't simply offset your emissions when, at no extra cost, you can also visibly...

* be active in supporting sustainable community agriculture for developing countries in Africa and Asia
* contribute to the continued development of one of the most unique forestation projects in the world
* show your family and friends the live, up-to-the-minute results of where your intelligent money is working for them and for you
* empower focused and dedicated Small Groups in developing countries to create a brighter future on a local and global scale
* increase food quality standards for tens of thousands of participants in four countries (India, Kenya, Tanzania and Uganda)
* feel good every time you read our latest newsletter or visit our site and discover what you have helped build
* do your part to make sure your children's children's children can breathe clean air

We deliver real results to you and the communities we work with, plain and simple.

The TIST Project, which actually empowers people th grow the trees and share the Best Practices in Small Groups, was started by Clean Air Action and is aided by The Institute for Environmental Innovation.

Grow Clean Air makes these credits available online for the consumer market in an effort to increase the overall positive impact of the TIST Program, allowing people around the world to quickly and easily offset their carbon footprint.

Very cool! If this interests you, find out why Grow Clean Air is a step ahead of the rest!

Mana Mushrooms has just been brought up to speed, though not up to date. It still runs Drupal 4.7.x and works beautifully.

From Website

Fungi Fun Guys

We research, test, document, improve and implement methods to transform waste streams and byproducts into competitive advantages. In tailoring unique cultivation processes for gourmet, medicinal and exotic mushrooms and creating uses for existing wastes in a system, we manifest value-added by-products and services for individuals, organizations, businesses and ourselves. By open-sourcing these beneficial environmental practices that improve a system's vitality and natural resource efficiency, we spread useful and productive tools and information to the communities in which we operate. Our models are scalable and can be implemented with success at the local and industrial levels to manifest opportunities where “problems” exist. Once we achieve our goal to provide the best product or service in a given niche, we endeavour to spark change in how business is done there by steering the focus towards renewable, non-linear systems.

View an open source mushroom cultivation business model. >>

The amount of content on this site is amazing - and lots more to come.

Find out about open source gourment, exotic and medicinal mushroom cultivation.

Free Language is by far my highest-traffic Drupal website yet. And it takes the load splendidly. :)

I used loads of modules for this site, mainly pathauto, poormanscron, tagadelic and aggregator2.

From Website

Free Language's Goals

. To organize, categorize and effectively present the existing quality online language learning resources for the end user who is interested in learing a language online.

. To disseminate free information about world languages, lessons for learning and links for exploring and discovering.

. To create an active, accessible and eclectic user base of people from around the world interested in learning languages.

. To do these things in a way that is understandable and easily-navigable by the end user.

Non-free or commercial resources are listed here only after having been reviewed by Free Language and deemed to be worthy of spending money!

So why do we call it Free Language?

We call it Free Language for several reasons, some of which we like to think are good ones.

. We will never charge for access to any part of this site.

. Anything and everything that is original here is free by the terms of the GNU FDL.

. We focus largely on and steer our users towards free (as in price) resources available on the Web.

. We encourage and support our users to collectively build a knowledgebase in the Public Domain.

. Our end goal will effectively eliminate the need for commercial resources.

Free Language is a moiety in unrev.org's entelechy.

Visit Free Language.

I have just installed Drupal 6.0rc2 at Hearth.ws.

For quite some time now I have been meaning to set up an aggregator for all of the unrev.org web entities. I wanted to be able to have it all come together in one place. Not just that, the desire was to be able to clearly show the entire unrev.org entelechy on one page, dynamically.

Take that and add the ability to condense all those feeds into one, and a very powerful syndication mechanism emerges.

In toying with theme choices, I originally went with Splender. However, I found out that it didn't support "no sidebars", and the content stayed in the middle with blank spaces right and left where the blocks would be. So I switched over to Nista, another really simple, fast theme that allows content to fill in the sidebar area when no sidebars are displayed.

I chose not to add a single contributed module to keep it really light. (That said, I will install and use the Poormanscron module once it is updated to Drupal 6.) The purpose of the site is so straight forward, and the number of url aliases relatively minimal as they are limited to a single feed aggregator category and each feed, that Drupalers can get away with a nearly strictly core + theme instance of Drupal.

For other sites that I use to aggregate larger amounts of feeds in this way, I would sure like to have the Pathauto module take care of paths generated by the core Feed Aggregator module. This is something I must make a feature request for. I have wanted this since early versions of Drupal.

I am noticing some sweet upgrades to Drupal with the new version 6. The positioning of blocks is smooth as heck, editing menus is a breeze, heirarchy of vocabulary takes a fraction of the time it used to, some core lingo has been changed (access control -> permissions, news aggregator -> feed aggregator, categories -> taxonomy) and major update/upgrade support has been kicked into the system. I am particularly impressed by this last point, as the system itself keeps you up to date with key info about the Drupal version, modules, themes, translations, etc that you are working with.

Back to Hearth.ws (and Earth): Overall, it was a super-simple install, and now I just have to finish adding all the feeds from the many web entities unrev.org is currently upholding.