here, but there are many methods out there. I intend to try all three of these.
From The Doc Is In comes this fast-paced, focused, round-robin-style editing. The time allowed seems a little short to me, but that can be easily remedied:
From Teaching the Teacher is this method using Google drive:
Finally, the High School Bits blogs offers one teacher's method of using class discussions and having the whole class review the same few pieces at the same time: