DNA and Genealogy
One of the more recent applications of technology in the genealogist's tool box is that of utilizing the results of DNA testing. Many brick walls have been broken through with the aid of DNA testing. You even may discover some cousins you never knew you had.
The cost for the test is moderate and the test itself is completely painless using a cheek swab. For more detailed information on DNA testing and what it can produce click on More about DNA in genealogy.
There are several DNA testing laboratories including Genetic Genealogy, Family Tree DNA, and Ancestry DNA to name a few. One thing you should keep in mind in choosing a testing lab is what data base do they have or have access to for comparing your DNA to others for matches.