[plt-scheme] how to write a web sever

>
>Do you want to write:
>
>a) a webserver? OR
>b) a program that runs within a webserver?
>
>They are quite different things.  If the former you'll
>want to read at least the HTTP spec and learn about
>PLT Scheme's TCP ports.  For the latter you'll want to
>read about 'servlets' in Help Desk, and look at some
>of the examples provided with PLT Scheme.
>
>HTH,
>Noel
>
>=====
>Email: noelwelsh <at> yahoo <dot> com
>Jabber: noelw <at> jabber <dot> org
>

Thank you. 

I want to write the latter. The documentation for the web-server 
collection in Help Desk is helpful. But where is "some of the 
examples provided with PLT Scheme"?