Many thanks!

It is a pleasure to recognize the many people whose contributions have made this website possible.

Photo Credits

The bicycle in sillhouette near the bottom right on our pages is modified from a graphic found on www.xtracycle.com. Thanks to the wonderful folks at Xtracycle, Inc. for extending their permission for its use. We love their products and think you might, too.

The portrait of M. King Hubbert that appears in our crash course on peak oil was obtained from his biography hosted by Illinois State Geological Survey.

Testing

If you find a broken link, we want to know — and if you don't, that is because these wonderful folks have provided their ongoing feedback to improve our site. Thanks to: