I would defo make it fiction. You don't want a law suit coming after you. As for titles, what about- Civil war in Suburbia. Oprah's Defence Mechanism for a healthy Marriage. or Get Ready for Battle, Oprah's Marshaling the in-laws.
You would have to bring Oprah's personal battles into your story, her weight issues slim,fat very fat, obese, normal, slim and fat.
The more I think about it there is about 20 plus hubs you could write using Oprah as the center figure.
I feel kinda silly asking this because I can't find any mention of this anywhere in the forums... If I want to put a link to something in my hub, as a reference for example, do I need to get permission from the...