Boston Marriage Links: A page with many links relating to Boston Marriage, the 19th-century practice of women friends living together long-term.
Gale Encyclopedia of Psychology: Friendship: Short encyclopedia article about friendship.
Iolaus: An Anthology of Friendship: A reprint of a 1908 treatise on historical friendship customs.
Sarah Orne Jewett and Annie Adams Fields: Boston Marriage and the Cultural Nexus: An article focusing on the Boston Marriage (19th-century practice of committed friendship) between Sarah Jewett and Annie Fields.
The Importance of Friendships: Scottish article about friendship and adoslescents.
The Misguided Search for 'Homoeroticism': A Plea for Research on Friendship: An essay discussing the debate over whether same-sex relationships in historical documents were gay relationships or nonsexual friendships, and arguing that historians often label relationships "gay" when the label is not warranted.
Xena and Gabrielle: A Revisitation of the Classic Romantic Friendship: This site explores the history of "Romantic Friendship" (the 15th-through-19th-century practice of intense yet nonsexual same-sex love) and the possibility that television characters Xena and Gabrielle are practicing this custom.