Msg#: 3245094 posted 5:45 pm on Feb 7, 2007 (gmt 0)
My experience is don't.
My company has invested quite a bit in white papers. We allowed are partners to post them on their sites, and this may have been a factor in our being inflicted with the -30 penalty (no way of knowing that for sure of course).
Adam Lasnik has written about duplicate content. Go to the 'Official Google Webmaster Central' blog and you'll find his comments. Summary: G does not like duplicated content. Because white papers generally are content heavy, my guess is it's a very bad thing.
Our response was to have them on our site only, and to get our partners to link to us but with the PDF loading into another browser window - so that the prospect stayed on their site.
If they insist on hosting them (and they might) then put them into a separate directory on their servers, and use robots.txt to exclude spiders from that directory - just like you would 'printer friendly' pages.