OrderChaos: Sustainable Personal Agriculture and Energy

The farm is nearly 100 acres of pristine land: half old growth forest (over 150 years old), the other hayfields that have never, as far as we can surmise from provenance, seen chemicals. Good water, good drainage. In a low valley. A stream trickling by sixty feet from the house, which rages only when it deluges. Two barns, and some fruit trees.
My wife and I have just acquired this northeast-central Nova Scotia hobby farm. We realize we have something marvelous, even magical. Enough acres for the sustainability of the two ecosystems; instant organic in the fields; instant room to build sustainable agriculture; instant pleasure -- and amazingly, long-term happiness and a long-term goal, since we're able to gradually grow into it over the next few years.
What I hope to collect includes background info on the nuts and bolts of building experimental wind- and water-energy devices in my garage; information on non-intrusive, non-retaining, non-toxic, organic responses to invasive species and normal agricultural pests; what sorts of right-sized farming equipment would be appropriate for a farm designed for sustainability and mild trade; what forms of that technology might be turned electric, wind-powered?
If you have suggestions for sites to add, go to the blog and comment/suggest away!