Just a heads up for those who use Ebay. There are many who sell CDs of historical books, county histories, atlases, etc. Make certain these are not available for free on www.archive.org, the BYU Historical Archives, etc. You can download from there and make your own CDs.
I'm a genealogy researcher, writer and speaker who is still looking for the answer to several family history questions.
I also give family history seminars and lectures on a variety of genealogy topics.