JSTOR is making freely available to anyone throughout the world a vast amount of journal content. This content, almost 500,000 articles from more than 200 journals, consists of articles published prior to 1923 in the United States and prior to 1870 elsewhere. All this material, representing approximately 6% of the total content on JSTOR, may be downloaded.
A quick video tutorial about how to access this content is available.
See JSTOR's 7th September, 2011 Press Release.