DNA testing can provide information about what percentage of your ancestors came from different parts of the world. It can also help you find an unknown parent or grandparent, or match you with relatives you didn’t know you had.
Watch this tutorial from Ancestry.com to gain some useful ideas for overcoming your research problems.
Traditional genealogical records can be used to research your African American ancestors back to the Civil War period. Prior to that time, African American genealogy can present its own set of unique challenges. In the southern states before African Americans obtained citizenship in 1868, records were rare and it may be necessary to research the slave owner to find information on your ancestor. This doesn't mean you can't be successful in your research, however! These links can help you find the resources you need.
Many of the early immigrants to the United States were from Europe, and some of these immigrants arrived through Ellis Island. Passenger lists and arrival records are important resources to explore no matter which port your ancestor came through.
Florida's history includes a rich Hispanic heritage. If your ancestors came to the US from Spain, South America, or Central America, these resources can help with your research.
At some point you may need to travel to get records, or you may want to visit the grave or former home of an ancestor. Research trips can be incredibly rewarding, especially if you plan ahead.