As the maintainer of GNU awk, I once thought that I would be
able to manage a collection of publicly available awk programs
and I even solicited contributions. Making things available on the Internet
helps keep the gawk distribution down to manageable size.
The initial collection of material, such as it is, is still available at ftp://ftp.freefriends.org/arnold/Awkstuff.
In the hopes of doing something broader, I acquired the
awklang.org domain. Late in 2017, a volunteer took on the task
of managing it.
If you have written an interesting awk program that
you would like to share with the rest of the world, please see
http://www.awklang.org and use the “Contact” link.
If you have written a gawk extension, please see
The gawkextlib Project.