You'll find lots of personal stories on the boards and lots of links to other places where you can find information. You'll find mention of other books to check into. You'll also find that, usually, somebody will be happy to discuss most any issue or question you have.
When speaking of various forms of non-monogamy...it ain't poly if you're just fucking around.
While polyamory, open relationships, and swinging are all distinctly different approaches to non-monogamy, they are not mutually exlusive. Folks can, and some do, engage in more than one of them at a time--and it's all good.