copyleft

I wanted to make this blog available under a copyleft license. The way to do that is to still create a Copyright notice, but include the terms of use. Like this:

Copyright (C) <date>, <name of author>

This information is free; 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 2 of the License, or
(at your option) any later version.

This work 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. 

Adding a copyleft © symbol is superfluous but cool (and only available in CSS3 compliant browsers):

<!--[if lte IE 8]><span style="filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=2); display: inline-block;"><![endif]-->
<span style="-webkit-transform: rotate(180deg); -moz-transform: rotate(180deg); -o-transform: rotate(180deg); -khtml-transform: rotate(180deg); -ms-transform: rotate(180deg); transform: rotate(180deg); display: inline-block;">
        &copy;
</span>
<!--[if lte IE 8]></span><![endif]-->

more information here
http://www.gnu.org/philosophy/nonsoftware-copyleft.html
http://www.gnu.org/copyleft/copyleft.html
http://en.wikipedia.org/wiki/Copyleft