This should be useful to authors of the Perl summaries and such, which was my main reason for making Metamark.
Beware that you need to install URI::Find and WWW::Shorten. WWW::Shorten requires about two billion other modules (mostly indirectly), so be sure to use the CPAN shell to install them.
# perl -MCPAN -e shell
install URI::Find WWW::Shorten
Oh, and you can of course use one of the other shortening services that WWW::Shorten supports.