Oxford Bibliographies Offers peer-reviewed annotated bibliographies on specific topics in a growing range of subject areas.
There are at least 50 specific topical bibliographies in each subject area. Each of these features an introduction to the topic. Bibliographies are browsable by subject area and keyword searchable. Contains a "My OBO" function that allows users to create personalized bibliographies of individual citations from different bibliographies
Encyclopedias are great for, choosing a topic; educating yourself quickly; perspective on a topic; variant spellings, vocabulary, terminology; and bibliography.