The genealogy craze

The Internet and DNA testing are enabling amateur and professional genealogists to trace family lines back hundreds of years. These tools, combined with a growing interest in our roots, are leading many people to investigate their family history.

Guests

• Megan Smolenyak: genealogist and chief family historian for Ancestry.com. Her new book is "who Do You Think You Are?: The Essential Guide to Tracing Your Family History."
• Bennett Greenspan: founder and CEO of Family Tree DNA, a company that performs DNA testing for genealogists.

Resources

• Family Tree DNA
• Megan Smolenyak's Web site