David,

An excellent place to start is at www.rootsweb.com. You should start with yourself and trace the lines back as you can based on information available from your family. (full name, birth, death and marriage dates are a huge help) Genealogy is a fascinating hobby, it can become an addiction, just like kilts.

There is a lot of incorrect information on some of these websites so it pays to find out as much as you can about your own family before you start on the web.

Good luck and good hunting!

Jim