We are pleased to announce that Temple University Libraries has acquired Web of Science backfiles to the year 1900. The breakdown by discipline is:

• Arts & Humanities back to 1975
• Social Sciences back to 1956
• Science back to 1900

Web of Science is a repository of historic, multi-disciplinary journal literature. The backfiles are critical to locating a wealth of useful historic source and citation information. Of the 50 most highly cited items in Web of Science, more than 60% were published over 20 years ago. Via the powerful linking capabilities of the Web, retrospective data becomes easily available and maximizes serendipitous discovery. —Kathy Szigeti