A number of organizations and states provide material online about self defense and weapons carry law and TTP. These are resources that contain information not just limited to those who live in the State where it is published.
Armed Citizens Legal Defense Network – What Every Gun Owner Needs to Know About Self-Defense Law
Handgunlaw.us – Guide to Handgun Laws, State by State
Ohio Attorney General – Concealed Carry Laws Manual
Wisconsin Attorney General – Firearm Safety Course This is an excellent online reference for new gun owners and carriers. It’s not only pertinent to those living in Wisconsin; there’s a lot of good general information in it.
Reed Martz, an attorney in Mississippi, has an extensive page about Mississippi Gun Laws (and other weapons).