According to the Oral History Association's website, "Oral history is a field of study and a method of gathering, preserving and interpreting the voices and memories of people, communities, and participants in past events." Oral history is both the oldest type of historical documenation and one of the most modern, initiated with reel-to-reel recorders at Columbia University in the 1940s and now taking advantage of 21st-century digital technologies.
* For more on Oral Histories, see the Oral History Primer page, created and maintained by U.C. Santa Cruz.
From the University Library at the Univ. of Calif., Santa Cruz
From Basic Interviewing Techniques
One Minute Guide to Oral History by Carole Hicke
The One-Minute Guide to Conducting an Oral History
The One-Minute Guide to Oral History Interviewing