Centre for Fraternal Studies - This organization aims to protect and preserve Australia's fraternal heritage. - http://www.fraternalsecrets.org
US Federal Tax Information for Fraternal Societies - From the US Department of the Treasury. Exemption requirements, application, and filing details; also unrelated business and solicitation information. - http://www.irs.gov/charities/index.html
Fraternal History of Marin County: A Survey of Secret Societies - A survey of secret societies, including a general history of various fraternities and their specific impact on Marin County California. - http://mill-valley.freemasonry.biz/marin-fraternities.htm
List of Fraternal Organizations - A listing of public and secret societies and fraternal organizations with abbreviations. Includes slogans and mottos. For ease in attributing collectibles that only feature initials. - http://www.exonumia.com/art/society.htm