ERIC: Educational Research Information Clearinghouse
From 1966--2003 16 clearinghouses around the country collected information in specific aspects of education, kindergarten through college (elementary, phys ed, etc) and adult education. Each Clearinghouse and adjunct focused on a subject specialty. In 2004 ERIC was centralized.
The ERIC online system provides the public with a centralized ERIC Web site for searching the ERIC bibliographic database of more than 1.1 million citations going back to 1966. More than 107,000 full-text non-journal documents (issued 1993-2004), previously available through fee-based services only, are now available for free.
Collected, indexed and abstracted: papers, conference proceedings, sample curricula, studies and journal articles. The US Dept of Education ERIC web site offers full-text of most items published 1993-2004. (These are in portable document format, .pdf. If your browser won't open them, get a free copy of Acrobat Reader, which handles these files.)