Well your post gave me a great idea for using an "interview" that I already wrote with a character who will be appearing in an upcoming Kindle book.
I believe it was Paula Danziger who recommended writing letters to or from your primary characters as part of your writing. She (or whoever was saying this at a writing conference) said it was a great way to get inside the head of your character and really understand their motivation and give them their own unique voice.
When I wrote a story several years ago, many in my critique group thought the mother seemed unrealistically harsh on her daughter. "Who would be like that?" or "What's the mother's problem?" were comments I got. So I wrote a section from the mother explaining why she had such a strained relationship with her daughter. Everyone in the group thought my letter was great and they changed from telling me the mom character needed to be changed to helping me make her more understandable in the story.
So now I'm thinking.... I could use that as a blog post, either on my blog, or perhaps on a blog about motherhood. I have one where i guest posted before.
Wow.... cool idea.
Oh and the advice about writing to and from your characters, it was followed by the caution that it is best to not let too many people know that you do that, or else they may cart you away to the funny farm! LOL!