Often they find new (to them) information in a book, such as a family history. Again, they type it into their database, and may not indicate the source of that information. Even when they do identify where they obtained their information, most electronic family trees do not make that information readily available for others using the collected data. Seldom do these researchers do extensive research into original sources and carefully draw conclusions regarding the accuracy or completeness of a lineage. However, at least some information is being preserved and made accessible to a larger pool of family historians. This discussion should also point out that the major source for the information in computerized collections is family records. For almost every family historian, family records and other family sources (including close and distant relatives) are the beginnings of their own data base of relatives. Many family historians don't go far beyond these sources before sharing their data (right or wrong) with others. The Advantages The great benefit, of course, is that as more information is shared, all researchers obtain access to information once hidden in family sources. Often this includes immigrant origins, especially for 19th and 20th century immigrants. While the origins of earlier immigrants are seldom found in family sources, the more recent the immigrant, the greater the possibility that some family record somewhere includes mention of the home town and that a computer-savvy descendant has captured that information onto his or her data base. Another important component of genealogical computer collections is the conversion of previously published information, from printed material to an electronic format.