In a major turnabout, the New York Times is making its archives from 1851 to 1922 and from 1987 to the present available on the web at no charge. The material from 1851 to 1922 has long been out of copyright and was available elsewhere for modest fees. However, the Times used to charge to access those editions as well as the newer ones since 1987 on the Times' own web site. Other sections of the site have also been behind a "pay wall," generating more than $10 million a year in revenue. Now the paper is opening up most of its web site, although not everything. The announcement says there will be charges for some material from the period 1923 to 1986, and some will be free. However, the announcement does not give details of what remains available only to paid access. Details may be found at http://www.iht.com/articles/2007/09/18/business/18times.php.