Your very question proves that you are already doing the right things!
So many are not yet to the right questions.
How about talking to the old-timers? I will guarantee you that every one of them has a stash of old books, and memories, with valuable information.
Mine are old gardening books. My Gardening Encyclopedia contains articles from so long ago that they talk about The Great War, which we now call World War I.
(The beauty of an old gardening book is the names of the varieties used. You see, they can't use the old variety names on genetically-mutilated seeds. Grin! All we gotta do is list the old varieties, and search for them.
Besides, there are heroic seed-savers who beg people to grow out their treasures.
Get to know gardeners, organic growers, Eliot Coleman - http://www.fourseasonfarm.com His carrots have become the coin of trade among local schoolchildren. They know the difference.
There's nothing wrong with most 'depleted' growing soil that 'lying fallow' won't fix. Or restoration with carefully transplanted weeds and grasses. See Mr. Nasser's work in Brazil at http://www.ashoka.org and read everyone else's brilliant ideas there, too.
CureZone itself is loaded with links and ideas, as you know.
Take a ride in an airplane. Notice how vast is the countryside outside cities. I like looking for little homesteads tucked inside large treed properties. I don't see how they could possibly have outside electricity, city water, etc. Great food for imagination!
I saw one elderly man who still lived on his family's farm with the electrical system he built (from salvage) when he was young. As a boy, he had become the 'man' of the family, and taught himself everything.
You and I can do that.
Oh yes, I wanted to say that you and I are 'the market'. All business has inadvertently put us in control. It is the dollar in your pocket and mine that business MUST have. All we have to do is to teach business what we will buy.
"If we refuse to buy what is offered, watch how fast we will be offered what we WILL buy."