Different Types of Workshop Reviews

I thought the reading of our essay to each other was the most effective way to proof the essays and get  feedback.  When I read my essay out loud to other people I noticed more grammatical errors and got good feedback from the other people in my group.  It also made me more comfortable with my essay.  The writing reviews on other people's paper might help a little, but I think the on the spot feedback from a person face to face is the best form of revision.