This is the FreeBSD Ports Collection.  For an easy to use
WEB-based interface to it, please see:

        http://www.freebsd.org/ports

For general information on the ports collection, please see the
FreeBSD Handbook which is available from:

        file://localhost/usr/share/doc/handbook/handbook.html

(if you installed the doc distribution on your machine)

Or:

        http://www.freebsd.org/handbook/handbook.html

for the latest official version from FreeBSD-current.

The section "The Ports Collection" will tell you how to use the
ports and packages and the "Porting Applications" section
describes how one can contribute to the ports collection.