Switched to MIT license, following original code.

README.md

@@ -80,4 +80,5 @@ seem to work with IE 8, even with excanvas.
 License
 -------
 
-flot-axislabels is released under [GPLv3](http://www.gnu.org/licenses/).
+flot-axislabels is released under the terms of [the MIT License](http://www.opensource.org/licenses/MIT).
+

jquery.flot.axislabels.js

@@ -1,21 +1,31 @@
 /*
-Axis Labels Plugin for flot. :P
+Axis Labels Plugin for flot.
 http://github.com/markrcote/flot-axislabels
-Released under the GPLv3 license by Xuan Luo, September 2010.
-Improvements by Mark Cote.
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+Original code is Copyright (c) 2010 Xuan Luo.
+Original code was released under the GPLv3 license by Xuan Luo, September 2010.
+Original code was rereleased under the MIT license by Xuan Luo, April 2012.
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+Improvements by Mark Cote.
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
  */
 (function ($) {