One of the very best teacher-led blogs currently reading can be found at http://www.huntingenglish.com/
Maintained by the personable Alex Quigley, it is a rigorous (yet personal) diary and noteboard about the trials and tribulations of being an English teacher. I have used his resources fairly extensively, and feel he has credibility as much as anyone.
Although he does not know who I am from my time in Yorkshire, my pals play football with him on a regular basis. He isn’t too bad at that, either!
So, well worth a look, particularly in regards to his questioning posts: http://www.huntingenglish.com/tag/questioning/