Links to related information on other sites:

How and when to preserve newspapers, by Kathy Ludwig and Bryan Johnson Tech Talk/March 1997/Vol. XXV, No. 3 - (An Adobe PDF file) 
http://www.mnhs.org/about/publications/ techtalk/TechTalkMarch1997.pdf

Information Sheet No. 5 - Guidelines for
Storing Newspapers
 
http://www.slv.vic.gov.au/services/conservation/guides/newspaper_storage.html

Preservation Photocopying 
http://www.loc.gov/preserv/care/photocpy.html