This page links to a series of video guides crated by Daniel (Great Plains). These videos are hosted on YouTube.
Topics: Introduction to LibriVox, joining LibriVox, and registering for projects.
2. Getting Started
Topics: Downloading and installing Audacity, installing the LAME plug-in, and choosing the microphone.
3. Setting LibriVox Specs in Audacity
This little video explains how to set the sampling frequency, bit rate, file format, mono track, 16 bit sample rate and ID3 tags that LibriVox prefers 
2. How to Upload your 1 Minute test: