Everybody is a True Believer. Everybody has a little nugget they're convinced of that is the opposite of the nugget on the other side. And they're convinced it's fact.
I was the executive editor on a little magazine called Greek Accent, whose only claim to fame is that its art director went on to be the art director of Discover for many years.
Listen to advice. You don't know how many writer's conferences I've taught at where at least half the audience fights all the conventions of the field.
My husband used to take care of the business part of this, and after he died I found I wasn't really any good at it. I hate remembering who owes me what and bugging them if they haven't paid me.
The Internet makes it possible for people like me to live the way I do now. Without it, I'd have to be in New York or some other city. I think the Internet is the greatest invention in history after antibiotics.
You've either got to find a way to make your continuing characters insteresting without making them maudlin or overwrought, or you've got to put more emphasis on the suspects.