It's a simple idea, but it's possible to get wind energy without turbines. The result is less expensive, easier to install and most importantly it's more efficient.
Check out the links and full video at Third-World Wind Power: First Look.
Update: The original links and video are down. Brightcove.tv has ceased hosting it publically. I think they were a hosting service and not a video sharing company. However, I did find the original article on Popular Mechanics, so go check it out! And also there is this response article on Ecogeek.