The BES Bulletin was replaced by the online BES NEWS in 2008.
The Bulletins are still available here and here is the original introduction text:
The BES Bulletin is intended for members of the BES community. Researchers, educators, community and agency leaders intimately concerned with the work of BES are the target audience. The Bulletin contains perspectives from the project director, summaries with some degree of technical detail of activities and contributions of BES members. The Bulletin also announces and summarizes important meetings, opportunities, and activities of relevence to research and technical communications for BES.