1) Introduction: http://www.astrosociety.org/2012/ab2009-32.pdf.
2) Questions and answers about the doomsday 2012 myth, http://astrobiology.nasa.gov/ask-an-astrobiologist/intro/nibiru-and-doomsday-2012-questions-and-answers.
3) 2012 Hoax site (a well-executed, thorough examination of claims and counter-arguments by a group of professional and amateur astronomers), http://www.2012hoax.org/.
4) Wikipedia’s useful summary of the 2012 phenomenon and ideas, http://en.wikipedia.org/wiki/2012_doomsday_prediction.
5) Universe Today web site critiques, http://www.universetoday.com/2008/05/19/no-doomsday-in-2012/.
6) Discovery News Doomsday 2012 columns, http://news.discovery.com/space/dear-doomsayers-we-will-be-watching-you.html.
7) Top doomsday predictions gone bust (including Y2K, the Large Hadron Collider, and 8 others), http://news.discovery.com/history/may-21-doomsday-apocalypse-armageddon-110518.html.
8) “Six End-of-the-World in 2012 Myths Debunked” on the National Geographic News, http://news.nationalgeographic.com/news/2009/11/091106-2012-end-of-world-myths.html.
9) History of the Doomsday 2012 phenomenon: http://www.psychologytoday.com/files/attachments/79139/hoopes-2011-critical-history-2012-mythology.pdf.
10) Phil Plait (The “Bad Astronomer”) provides historical context for the prediction of rogue planets in the solar system, http://www.badastronomy.com/bad/misc/planetx/.
11) A detailed analysis of the Mayan calendar by an expert in mesoamerican studies, http://www.famsi.org/research/vanstone/2012/index.html and FAQs: http://www.famsi.org/research/vanstone/2012/faq.html.
12) Description and visuals for why the Galactic alignment happens every year, http://www.calendarinthesky.org/Articles/2012Science/2012ScicenceArticleView/tabid/144/ArticleId/9/The-Great-Galactic-Alignment-of-2012.aspx.
13) Details from NASA on the Mayan calendar, http://sunearthday.nasa.gov/2011/articles/2012_hoax.php
14) Doomsday 2012 Fact Sheet, http://www.seti.org/doomsday-2012-factsheet
VIDEOS
David Morrison (NASA Ames) summary of 2012 issues video (7 min), http://www.youtube.com/watch?v=EW0Wo0uZ6fg.
Ed Krupp (Griffith Observatory) on “Time’s Up [in 2012]” (a lecture at the Beckman Center November 4, 2009; 1 h 5 min), http://media.voicesatbeckman.org/dv/110409/index.html.
Jocelyn Bell Burnell on “Will the World End in 2012?” (3 videos, 2010 Royal Irish Academy),
Note: The majority of these references are from Andrew Fraknoi's AER article, "Resources for Responding to Doomsday 2012: An Annotated Guide".
