There are a number of resources which describe the basics of organizing an oral history project, including selecting topics, developing questions, choosing and purchasing equipment, interviewing techniques, and making your interviews accessible.
Oral History Workshop on the Web
California State University Long Beach, Department of History, Oral History Program:
Oral History Primer by Sherna Berger Gluck
Oral History in the Digital Age
Southern Oral History Program, University of North Carolina at Chapel Hill
Practical Guide to Oral History
Step-by-Step Guide to Oral History by Judith Moyer