If you have been doing genealogy for a while, you will no doubt have come across the work of other genealogists. There are user-submitted online family trees on many different well-known genealogy websites. Ancestry.com and FamilySearch.org are the sites where you will find the most user-submitted trees, but they are everywhere in smaller numbers. Places like GenWeb, Fold3, American Ancestors, and most of the DNA testing websites have user-submitted trees, too. You may be tempted to take the information on these trees and use it as your own, if these trees are talking about your ancestors. However, take a moment before you copy that information. Here are some things you should consider before using someone else’s research...