No, GPL stands for GNU Public License. It is a way for Copyrighting(Lefting) Free softwares. Usually free software releases under GPL or LGPL (Lesser GPL).
More info here
*www.gnu.org/philosophy/philosophy.html
*www.gnu.org/licenses/licenses.html
*www.gnu.org/licenses/gpl-faq.html
Must be in open source section, it will get a lot more attention