1.Decide what type of feedback/group you truly want and need.
2. You must be willing to commit to it as if it were a job.
Uneven groups foment resentment. It is bad for the group when some people submit and critique and others don't. Members who don't show up are disruptive. Everyone has "life" events that intrude, but you should try to schedule a time and place and hold it sacred.
3. Make rules and stick to them.
Decide how often you will meet, where or how you meet (in person, online groups, Skype, etc.), how many pages are submitted, the type of feedback you need for each submission, and the format of the feedback (written notes, verbal exchange, notations in Word for Windows, or a combination). Some may be at the final draft stage, others at the first draft.
4. Assign a "clock watcher." It is best to divide your time up evenly so no one gets left out or feels their work has not received equal attention. Make it someone's job to keep time.
5. Assign a "temperature taker." This person keeps everyone on topic and keeps the discussion from becoming heated. Hurt feelings can fester and destroy a group quickly. Make it someone's job to keep the flow positive. It is best to confront any negative interaction right away.
6. Check your ego at the door. If you can't handle constructive criticism, then this is not the venue for you. Everyone will have a different take on your work. They will catch different things. They will have opinions. You do not have to respond to or adapt to them. Say thank you and move on. But if more than one person says the the same thing, you should listen a little closer.
7. No gossiping about each other. Period. No trolling members you don't like.