Language Families

Wikipedia article: Language families
Wikipedia article: Germanic languages
Wikipedia article: Romance languages
Wikipedia article: Indo-European Languages
Wikipedia article: Native American languages
Ethnologue: Languages of the World
The Linguist List: language families
Native Languages of the Americas: Amerindian Language Families
Indo-European Documentation Center
SIL Electronic Survey Reports Language Family Index
Wikipedia: article sur les familles de langues
Wikipedia: langues germaniques
Wikipedia: artcile sur les langues Indo-Européennes
Free lang: Les principales langues du monde classˇes par familles