Weber was a brilliant scholar and thinker. Most of his work was published posthumously, and much of it very germaine to this discussion.

I don't know which you looked at, the Wiki article on the essay, or the Wiki article about Max Weber. The Max Weber article catalogues his published works. I've read most of them, and considered it time very well spent.

The Wiki article on Max Weber gives a fairly cogent synopsis of his qualitative research.