School reviews by employees - similar to Glassdoor

[mbcdefg]

Is there any kind of website where teachers can anonymously comment on the schools where they work?  

I'm Googling but all I'm finding is websites where students and parents review schools. I'm looking for something where faculty members talk about what it's like to work there. 

I tried Glassdoor but the specific place is not listed. I also tried the City-Data.com forums but I don't see anything. 

(PDQ, I may DD the thread later.)

[fumbalina]

While I don't like the metrics on Great Schools, some of the schools do have employees that comment on what it is like to work there.

[LoveTrains]

LinkedIn (at least for private schools)