In February (2006), Charles Bailey Jr. released a pre-print of his paper "What Is Open Access?". The paper was later incorporated in the book entitled Open Access, published by Dr. Neil Jacobs in July. Bailey's 18-page paper does an admirable job defining open access and talking about the OA movement.
Open access is reliant on materials being available in digital form, and being adequately accessible and preserved. For those reasons, if you are not familiar with this movement, I encourage you to read Bailey's paper so that can participate in OA discussions and developments.
Technorati tags: Digital Preservation, Open Access