The code for Freefilter, an open source clone of Metafilter is now available. Mefi's structure as a posting and discussion board is unlike most other's available. It's fluid and user friendly and it was only a matter of time before someone coded their own version especially considering the success of Whedonesque and Sportsfilter. This isn't the first time an attempt has been made of course. This version isn't 'out of the box' yet though -- as the readme.txt says, you'll need:"A Web server, preferably Loonix, MySQL, an, er, recentish version, Perl, DBI and CGI modules for Perl, these should come as standard with most Perl installations, a sense of humor to read my source code..."