Mentorship is more than being available for an occasional call or rap session. The most productive mentoring relationships consist of some structure and agreement around how the relationship is going to work. 

When it's right, mentorship is one of the most effective ways to provide better exposure and more access to opportunities to women. In this article, Pat Mitchell, the first female president of CNN and author of "Becoming a Dangerous Woman: Embracing Risk to Change the World" breaks it down.