Relate content to your own personal experiences, professional experiences or current events.
Critically analyze the content, be grammatically correct and proofread for spelling errors. It counts in the real world, so it counts here too.
Initial postings and responses need to extend discussions already taking place, or pose new possibilities or opinions not previously stated comments.
Demonstrate evidence of graduate-level thinking about the topics and professional interactions with other participants.
Demonstrate that you have interesting and provocative things to contribute to the discussion.