Examples of web programs are included with the FWEB, CWEB, and noweb distributions. nuweb is written in itself.
Cameron Smith converted the K&R calculator program into a literate program. It can be retrieved by anonymous ftp from:
niord.shsu.edu [192.92.115.8] directory kr-cweb-sample as
krcwsamp.zip
or from
LPA/Documentation
Ross Williams has released a funnelweb example. You can retrieve this
file from node ftp.adelaide.edu.au /pub/funnelweb/examples/except.*This file should be on CTAN as well.
Lee Wittenberg has posted a few litprog examples. They are available via anonymous ftp from:
ftp://samson.kean.edu/pub/leew/samples.LP
The Stanford GraphBase is a large collection of programs by Don Knuth for
doing all kinds of computations and games with graphs; it is written in
(Levy/Knuth) CWEB. More details in the distribution. It is available
via anonymous ftp from:
labrea.stanford.edu:/pub/sgb