A few major resources, while not providing full text content to articles and books, provide a means of identifying relevant sources.

INSPEC is a core database in many of the science fields. INSPEC is the world's largest bibliographic database for the fields of physics, electrical engineering and electronics, computers and control engineering, and information technology. Many of the journals and articles indexed are also directly related to astronomy. At the University of North Carolina at Chapel Hill we have access to INSPEC through ISI's Web of Knowledge. If this will be your first time using INSPEC, you may find ISI's help section on INSPEC's front page helpful in getting started.

You should also take the time to view ISI Web of Science. Including Science Citation Index Expanded, the ISI Citation Databases provide cited reference searching of the scholarly literature in many disciplines. ISI has a great help page to aid new users in searching.