For anyone interested in Genealogy, FamilySearch.org is a free site. Genealogy is a lot of fun! As a friend of mine said, it's like solving a mystery.
Also, they can always use Volunteers, and anyone can become an Indexer. If you decide to become an Indexer you'll be helping others to find information on their families and that just makes you feel really good inside. It's a great way to help others and you never know what you may find out about your own family along the way.