Constructive Critique is an all-important part of becoming a better writer. This cannot be emphasized strongly enough. Here is an article about CoCOA that it would behoove all writers to read, learn, embrace, and employ as part of their writing tool set. This can only help make you a better writer. And when it comes to Constructive Critique, both as a giver and receiver, it is important to remember that: We all have something to offer, and we all have much to learn.
http://www.ipopeye.net/resources/docs/pdf/CoCOA101.pdf