GeneaQuilts - A System for Exploring Large Genealogies

"Genealogies are represented in the form of a layered, diagonally-filled matrix, which eliminates crossings and accommodates very large datasets in the order of thousands of individuals. By depicting individuals as rows and families as columns, with parents always at a higher layer (generation) than their children, the visualization exhibits marriage and parent/children relationships, as well as other interesting relationships such as cross-generational and consanguine marriages."

http://infosthetics.com/archives/2010/11/geneaquilts.html


http://www.aviz.fr/geneaquilts/

GRAMPS

"GRAMPS is a Free Software Project for Genealogy, offering a professional genealogy program, and a wiki open to all. It is a community project, created, developed and governed by genealogists."

http://www.gramps-project.org/wiki/index.php

Geni - Family Tree

"Geni lets you create a family tree through our fun simple interface. You can expand your tree by adding relatives' email addresses. They will be invited to join your tree and can add other relatives. Your tree will continue to grow as relatives invite other relatives."

http://www.geni.com/tree/start