I've written http://commons.wikimedia.org/wiki/Commons:Wiki_Loves_Monuments/Organizing_a_Wiki_takes#Wiki_takes_Amsterdam this page with some basic instructions. 

I'm sure I've missed some things, that my English is far from perfect and that I made mistakes because I'm biased by the Wiki takes I've been to.

So please make improvements on that, or give feedback.

Another thing is that I would like some case studies.

I'm especially interested in case studies from Wiki takes which where organized in a special way or where succesful.

I'd like case studies from: Cologne, Mittelhesse, Andorra, Lisboa or Porto.

I'm also interested in case studies from other Wiki takes in the past, especially if they had a different concept. I'm thinking about Montreal, Manilla, the US ones and there is lots of them I haven't heared of yet, everything is welcome. 

Mvg, 

Bas