Free Trial E-Resources 電子資源試用


These free trials are provided by database vendors. Please make use of the opportunity to trial these resources and forward any comments through the Electronic Resources Evaluation Form.

U.S. Declassified Documents Online

Previously classified U.S. federal records obtained from all of the presidential libraries and numerous executive agencies such as Central Intelligence Agency and Federal Bureau of Investigation.

The types of materials include intelligence studies, policy papers, diplomatic correspondence, cabinet meeting minutes, briefing materials, and domestic surveillance and military reports, spanning the 20th and 21st centuries.

These records provide a unique, behind-the-scenes view of the highest level of American policymaking on the most sensitive issues of national security and foreign policy.

Trial access will expire on 15 November, 2016.

Search results can be filtered by Classification Level (e.g. Top Secret, Confidential)


A “Top Secret” document related to China, Taiwan, and Hong Kong


A “Term Frequency Analysis” on the number of documents related to Hong Kong, Macau, and Taiwan