Rich Mucci's Voice-over Course - Review and personal recommendation by La-Dair Guzman for a voiceover instructional containing "over 200 pages... including 60 commercials, audition tape copy, and over three hours of personal instruction on audio". - http://www.jinglebiz.com/vocourse.htm
How To Break Into Radio & TV Voice-Overs - A Cyber Book by Steve Irwin. Includes author profile, book outline and ordering information. - http://www.ohms.com/vohowto.htm