The Scientist article on Genetic Genealogy - Educating People on DNA

Steven Morse's One-Step Genetic Genealogy - the ABC's of Genetic Genealogy

International Society of Genetic Genealogy (ISSOG) Wiki - a Comprehensive Genetic Genealogy Encyclopedia

The Blair DNA Project - Interpreting your Y-DNA Results

Y-DNA Haplogroups - European Y-chromosome DNA (Y-DNA) Haplogroups, by Country

mtDNA Haplogroups - European mitochondrial DNA (mtDNA) Haplogroups, by Country

DNAweekly - Detailed descriptions of DNA tests