How do I find out what my state requires to form a nonprofit?

I know bylaws. But I don’t know the rules in every state. I just found this great book that has—among other great things—an appendix that lists, state by state, what is required to form a nonprofit organization.
It’s possible that some stuff may be slightly out of date, but at least it tells you where [...]

Tax exempt status vs. just not making money

So you go to the office supply store to buy paper for your nonprofit organization. You’ve heard that means you don’t have to pay sales tax.  The clerk asks for a copy of your letter from the IRS. And you’re stymied.  Your organization doesn’t make any money so it’s nonprofit, right?
Well, not exactly.
Only the IRS [...]