This is a copy of the GNU General Public License. Those wishing to see the original can do so by visiting the Free Software Foundation Web site. Here is the direct link to the license:
On that Web site, you may also want to check out the comparative list of license types (both commercial and noncommercial) and how they compare with the GNU GPL. Most interesting there is the definition of whether a license qualifies as free and whether it is compatible with the GPL. Here is that address:
Now, without further ado, here is the GNU GPL.