Check these webpages re pyramid selling :

Posted by OldtimerToo on July 15, 2004 at 14:44:38

In Reply to: Re: pyramid selling posted by Joseph on July 14, 2004 at 20:10:37:

MLMs in general: bogus foundational theory!
http://www.vandruff.com/mlm.html

Amway in particular (Yeah--i wasted a couple of years, there; TOO!!! Beware:
http://www.cocs.com/jhoagland/amcult.html
http://www.rickross.com/groups/amway.html
http://www.freedomofmind.com/resourcecenter/groups/a/amway/
http://koti.mbnet.fi/mantynen/schwartz/tools.htm

Education, education, education!