Primary sources
d91-00, 02, 04-05 The Daily Telegraph and Sunday Telegraph on CD-ROM 1991–2000, 2002, 2004–2005. Chadwyck-Healey/ProQuest. (478,837,273 words)
D92-95 Detroit Free Press on CD-ROM 1992–1995. Knight Ridder Information Inc. (102,989,512 words)
g90-05 The Guardian (including The Observer 1994–2005) on CD-ROM 1990–2005. Chadwyck-Healey/ProQuest. (645,817,821 words)
i93-94, 02-05 The Independent and The Independent on Sunday on CD-ROM 1993–94, 2002–2005. ProQuest. (242,608,117 words)
L92-95 The Los Angeles Times on CD-ROM 1992–1995 Knight Ridder Information Inc. (320,016,164 words)
L96-99 The Los Angeles Times 1996–1999 (courtesy of The Los Angeles Times Editorial Library). (275,506,490 words)
LOB The Lancaster-Oslo/Bergen Corpus on CD-ROM 1961. ICAME. (1,000,000 words)
m93-00 The Daily Mail and The Mail on Sunday on CD-ROM 1993–2000. Chadwyck-Healey. (206,762,410 words)
N01 The New York Times on CD-ROM 2001. ProQuest. (52,132,979 words)
NCF Nineteenth Century Fiction 1999–2000 Chadwyck-Healey. (37,589,837 words)
t90-04 The Times and The Sunday Times on CD-ROM 1990–2004 Chadwyck-Healey/ProQuest. (729,848,339 words)
W90-92 The Washington Times (including Insight on the News 1990–1992) on CD-ROM 1990–1992. Wayzata Technology. (93,889,488 words)