2002 November
http://www.gaming-age.com/news/2002/12/19-58

2002 December
http://www.gaming-age.com/cgi-bin/specials/special.pl?spec=csection2&pagenum=1

2003 January
http://www.gaming-age.com/news/2003/2/19-50

2003 February

2003 March

2003 April

2003 May

2003 June

2003 July

2003 August

2003 September

2003 October

2003 November
http://www.gaming-age.com/news/2003/12/16-40

2003 December

2004 January

2004 February

2004 March

2004 April

2004 May

2004 June

2003 January

2003 February

2003 March

2003 April

2003 May

2003 June

2003 July

2003 August

2003 September

2003 October

2003 November

2003 December
http://www.gaming-age.com/news/2004/1/22-59

2004 July
http://www.gamespot.com/news/6105043.html

2004 August
http://www.gamespot.com/news/6107422.html

2004 September

2004 October

2004 November
http://www.gaming-age.com/news/2004/12/10-40

2004 December
http://www.thestreet.com/_rms/stocks/troywolverton/10203496.html

2005 January

2005 February

2005 March

2005 April

2005 May

2005 June

2005 July
http://www.gamespot.com/news/6130894.html

2005 August

2005 September

2005 October

2005 November
http://www.gamespot.com/news/6141237.html
http://news.teamxbox.com/xbox/9943/NPD-Group-Releases-Xbox-360-Sales-Data/
http://www.thestreet.com/_rms/tech/gamesandgadgets/10257325.html

2005 December
http://www.gamespot.com/news/6142565.html
http://www.thestreet.com/_tscs/tech/gamesandgadgets/10261941.html

2006 January
http://www.gamasutra.com/php-bin/news_index.php?story=8143

2006 February
http://www.next-gen.biz/index.php?option=com_content&task=view&id=2465&Itemid=2

2006 March
http://www.1up.com/do/newsStory?cId=3149749

2006 April
http://www.joystiq.com/2006/05/17/xbox-360-is-aprils-top-selling-console/
http://www.gamespot.com/news/6151342.html

2006 May
http://www.joystiq.com/2006/06/09/us-hardware-sales-in-may-ps2-on-the-rise-360-takes-a-dip/
http://www.thestreet.com/p/_tscs/rmoney/gamesandgadgets/10291811.html

2006 June
http://www.joystiq.com/2006/07/14/report-us-game-sales-jump-25-in-june/
http://www.gamespot.com/news/6154053.html

2006 July
http://www.joystiq.com/2006/08/11/report-us-july-sales-up-22-ds-and-ea-top-sellers/
http://www.gamespot.com/news/6155651.html

2006 August
http://www.gamespot.com/news/6157314.html

2006 September
http://www.gamespot.com/news/6159811.html
http://biz.gamedaily.com/industry/feature/?id=14093

2006 October
http://biz.gamedaily.com/industry/feature/?id=14406

2006 November
http://www.joystiq.com/2006/12/07/npd-big-franchises-and-new-consoles-drive-industry-sales-up-34/
http://www.joystiq.com/2006/12/14/november-npd-revised-data-reveals-current-install-bases/
http://www.gamespot.com/news/6162870.html
http://ca.news.yahoo.com/s/afp/061208/business/us_computer_games_1
NPD->GAF

2006 December
http://www.joystiq.com/2007/01/11/december-npd-hardware-sales-push-industry-to-new-heights/
NPD->GAF

2007 January
http://biz.gamedaily.com/industry/feature/?id=15294
http://biz.gamedaily.com/industry/news/?id=15299
NPD->GAF
http://ve3d.ign.com/articles/766/766464p1.html