I currently live in Spain (for a few more months) but I own a home in Omaha which I'm slowly adding some permaculture touches to. So far I have swales, fruit trees, garden areas, water catchments, and I plan to add some nut trees, get my guilds built up, get chickens, and in ground water catchments within the next few years.
If you haven't heard of Gus Van Roenn, he does some design work in the area, and also there is a permaculture garden in North Omaha in the Gifford Park neighborhood (which also has its own CSA).
Also there's the Transition group of Omaha (Look for them on facebook). They hold meetings once a month to talk about solutions to the oil crisis. (At least that was my impression of the group from one visit and some emails).
Oh, and there's a local food movement growing, the magazine Edible Omaha is a great resource in learning about that. At Metro and Iowa Western they have classes in small farming, and even wanted to have a PDC.
Hope that was of some help.
I'd love to keep in touch as Omaha is my home, and I plan on being back soon.