There is a substantial amount of information on the subject in the
archives of CoOL (Conservation OnLine).

Mail submissions to [log in to unmask]
    Administrative matters (file requests, subscription requests, etc)
        to [log in to unmask]
    DistList Archives: All instances of the DistList are available
        (both for browsing by whole items and searching for individual
        messages): http://palimpsest.stanford.edu/
    The ConsDir is available at the same site.

Timothy Vitale
Paper and Photograph Conservator
& Preservation Consultant