http://thomashunter.name/blog/install-wget-on-os-x-lion/

how to install wget on OS X Lion

curl -O http://ftp.gnu.org/gnu/wget/wget-1.13.tar.gz
tar -xzvf wget-1.13.tar.gz
cd wget-1.13
./configure --with-ssl=openssl
make
sudo make install
which wget #Should output: /usr/local/bin/wget