There are three ways to get GNU software:
Free Software Foundation
51 Franklin Street, Fifth Floor
Boston, MA 02110-1301 USA
Phone: +1-617-542-5942
Fax (including Japan): +1-617-542-2652
Email: gnu@gnu.org
URL: http://www.gnu.org
Ordering from the FSF directly contributes to the support of the foundation and to the production of more free software.
ftp.gnu.org, in the directory /gnu/gawk.
The GNU software archive is mirrored around the world. The up-to-date list of mirror sites is available from the main FSF web site. Try to use one of the mirrors; they will be less busy, and you can usually find one closer to your site.