I need to find out the mailing address (either snail-mail or e-mail
for Colliers Encyclopedia/year book division

Hello,

Colliers Encyclopedia is no longer published under its own name.  
Microsoft (One Microsoft Way, Redmond, WA 98052) purchased the content
of Colliers and uses it in its Encarta product.  Colliers was
previously published by Macmillan Educational Corporation, in New
York.  MacMillan Educational is no longer in business (I believe), as
I was unable to find an address listed anywhere.  MacMillan
Publishing, probably the parent company, is located at:
Brunel Road, Houndmills, Basingstoke Hampshire RG21 6XS, England
and on the web at http://www.macmillan.com , but the website has no
mention of Colliers.

http://www.iste.org/L&L/27/2/software/reviews.html
http://indigo.ie/~curtin/prod02.htm

Search terms:
colliers
encyclopedia
macmillan
microsoft

Does that help?

bizguy-ga