Reference works such as handbooks, dictionaries, encyclopedias, directories, bibliographies, etc. provide useful background information which helps start your research.
Sage Knowledge - An online collection of subject encyclopedias and handbooks covering a wide-variety of subjects in the social sciences. Browse by the subject area Education to view all the titles available.
Blackwell Reference Online- Collection of reference books across the social sciences and humanities, with a particular strength in handbooks, of which there are several hundred, including Blackwell Handbook of Childhood Cognitive Development, Blackwell Handbook of Language Development and The Handbook of Education and Human Development .