JSTOR, a not-for-profit organization established with the assistance of The Mellon Foundation, provides the complete runs of core scholarly journal titles. The journals, mainly in ecology, economics, education, finance, history, mathematics, political science and population studies, can be browsed or searched, and the page images can be printed. There is usually a gap of 2 to 5 years between the most recently published issue of any journal and the date of the most recent issue available in JSTOR. NIE users currently have access to the following collections: Arts & Sciences I-XV; Business IV; Hebrew Journals; Ireland Collection; Life Sciences; Lives of Literature; Public Health; Security Studies; Sustainability; 19th Century British Pamphlets.