One Great Family is a genealogy site that will help you learn about your family tree. They offer a unique functionality that continually looks for new connections in your family tree, so if someone on the other side of the world inputs data relevant to your family, your tree is automatically updated. One Great Family offers a free trial so you can sign up to see how it works. If you are seriously into studying genealogy, they also offer a professional subscription. If you have a club or a group, you can sign up for a group subscription that allows multiple account users.