Journal articles and other periodical publications provide scholarly information on specific aspects of history and the history of science. Since articles are generally published on a shorter schedule than books, they can be more-up-to-date. The following indexes are the best ways for you to identify journal articles.
Literature reviews are a particularly useful resource when doing research. They address the issues involved in a particular question and the debates among scholars. They map out the intellectual terrain succinctly and give you the major landmarks in terms of key authors and significant titles for greater understanding.