These short videos show you how to:
Link to a Y chromosome haplotype via WikiTree:
https://www.youtube.com/watch?v=LYY6wO2weIA
Compare two or more Y chromosome haplotypes via WikiTree:
https://www.youtube.com/watch?v=qP1U_K_FEEE
Generate the modal Y chromosome haplotype of three or more Y chromosome testees:
https://www.youtube.com/watch?v=e7WO66WQr5Q
Create graphics to show the relationship between three or more Y haplotypes:
https://www.youtube.com/watch?v=O58iqiwq1DM
Calculate the estimated number of generations back to the most recent direct paternal line ancestor for two Y chromosome testees:
https://www.youtube.com/watch?v=ACC-h0OwVLE
Like WikiTree, mitoYDNA is free.