Mason is a Perl-based web programming language. Among other things, it allows Perl to be embedded in HTML.
http://www.masonhq.com/

Minutes from Washington D.C. - Founded in 1972, the university has grown into a major educational force and earned a reputation as an innovative, entrepreneurial institution.
http://www.gmu.edu/

A mason is a worker who builds in brick or stone, otherwise known as masonry. Mason may also refer to: Freemasonry, a fraternal organization whose membership has shared moral and ...
http://en.wikipedia.org/wiki/Mason

Download. Mason can be downloaded from CPAN: http://search.cpan.org/dist/HTML-Mason/ See the version history page for changes and incompatibilities between versions.
http://www.masonhq.com/?Download

Book by Dave Rolsky and Ken Williams. Full text freely available.
http://www.masonbook.com/