Gramps is a Free Software Project for Genealogy, offering a professional cross-platform genealogy program, and a wiki open to all.
The WikiTree community is growing a free worldwide family tree. The site is 100% free. There are no premium memberships. All content is contributed by the users and you can keep copyrights. You can also keep modern profiles private or even hidden altogether.
FamilySearch is a genealogy organization operated by The Church of Jesus Christ of Latter-day Saints. FamilySearch maintains a collection of records, resources, and services designed to help people learn more about their family history.
MyHeritage is a family-oriented social network service and genealogy website. It allows members to create their own family websites, share pictures and videos, organize family events,create family trees, and search for ancestors.
Webtrees is a free, open source, website based, collaborative genealogy application. It works with standard GEDCOM files and is installed on a web server using PHP and MySQL (or Postgres, SQL Server, or SQLite).
Explore your personal family history and discover your origins, your ancestors and how your family has evolved over the course of time. MacFamilyTree offers numerous options for you to capture and visualize your family history.