To do our anchestor- search and genealogy, we collect our personal family files.
The Church of Jesus Christ owns the greatest archive in the world for doing family search. In almost all wards of the church there are offices, where people - Members and nonmembers - can do their own research.
Even internet- search is possible. More than over 1.000.000.000 names are ready to look for. Just click on "family search" under "Links" to do so.