WOODWINDS 
International Saxophone
Home Page
http://www.saxophone.org/
There are several articles on this site that should help with
your research.
International Clarinet
Association Home Page
http://www.clarinet.org/
There is actually a library of articles related to the
clarinet on this site.
Orchestralist http://www.orchestralist.org/olinkwws.html
Links to information about many
of the woodwind instruments are part of this site.