Unfortunatly,I think the closet thing to your "Data" base has been Tried and Didnt happen....
I could be wrong tho..
We Experimented with a purpose built "Perma wiki" or our own (Permaculture wikipedia)..
The concept as far as i was concerned was ABSOLUTLY BRILLIANT... It Was Bread, before it became sliced bread....
One Trouble that put myself and a couple of other interested posters was,The Concept of "some one else"comming along and changing your hard earned thinking etc etc and skill,knowledges gained,and could be debunked by anyone whatsoever...
The thought of someone adding or removing willy nilly wasnt worth the horrible thoughts that ran thro my mind that could be changed,,,, Good or BAD ..
NOW if you take away that chance of !!!!!!!!!!! andmade it unchangable,Id be into that
3 acre town site block
Available to teach various Permie Subjects
Allmost 22years experience
"Permaculture. Just Do It"