As the site says, "Ever wish you could reconstruct the families that lived in your ancestral village in the 1750s? FamilySearch works with individuals and groups with the expertise to piece together the families that lived together historically in a community. We’re experimenting with ways to make these richly-sourced lineage-linked trees more available and expand the number of people helping with this effort. Check it out and tell us what you think.
"Community Trees are lineage-linked genealogies from specific time periods and geographic localities around the world. The information also includes the supporting sources. Most of the genealogies are joint projects between FamilySearch and others who live locally or have expertise in the area or records used to create the genealogies. Each Community Tree is a searchable database with views of individuals, families, ancestors and descendants, as well as printing options.
"The scope of partner projects may be a small, grass roots village or township working together to form a family tree of all the known residents of its community for a given time period. Some are genealogical and historical societies working with FamilySearch to index several sources of data to link them to common, lineage-linked genealogies of a targeted geographic area of interest.
"The scope could also be focused on a particular record set and locality. The goal may be to identify and reconstitute all families of a particular place from a village, county, or even a country. Many of the current projects were produced by FamilySearch's Family Reconstitution team and date back to the medieval times. One even has the audio of the oral genealogies attached.
"GEDCOM downloads of the community trees may be available depending on any records access restrictions. No living information is available in this public view. Edits and corrections to these databases are usually restricted by the partners, but please contact them to offer suggestions, corrections and new information. Some partners may have additional information or enhanced versions of the genealogies on their own website. These databases will be updated if they are a work in progress."
Comment by Dick Eastman: This is a great project! However, don't forget that you are looking at test software. It is almost guaranteed to have a few bugs. The reason for opening it up now is to ask the public to help identify those bugs.
You can learn more at http://histfam.familysearch.org/ and also at http://histfam.familysearch.org/learnmore.php.