Short version
I place everything in the public domain. Do whatever you want with it.
Long version
I, Arto Bendiken, waive all claim of copyright (legal and moral) regarding all works that I publish at my web site ar.to (including but not limited to articles, essays, book reviews, and code snippets). I release all legal and moral rights to such works under all jurisdictions, including but not limited to the rights to copy, republish, translate, arrange, modify, destroy, profit from, and make derivative works from such works.
I grant anyone the right to use such works for any purpose and without any conditions, including but not limited to the conditions of attributing the work to me or notifying me of such use (although as a courtesy I would appreciate such notification). Thus all of my works pass immediately into the public domain upon publication or performance.
The above is shamelessly adapted from Peter Saint-André and inspired by his essay Who's Afraid of the Public Domain?. See also The Promise of a Post-Copyright World and The Unlicense. More in-depth, two essential books on why you ought to question, and ultimately reject, the notion of copyright are Against Intellectual Property by Kinsella and Against Intellectual Monopoly by Boldrin and Levine.