| AccessScience | |
| Aluka | |
| American Broadsides and Ephemera, Series I | |
| Art Full Text (1984-) | |
| Art Museum Image Gallery (ca. 3000 B.C.-) | |
| Arte Publico Hispanic Historical Collection, Series 1 | |
| ARTstor | |
| Biography Reference Bank | |
| Bridgeman Education | |
| CQ Global Researcher (2007-) | |
| Digital Collections at the Center for Research Libraries | |
| Digital Sanborn Maps, 1867-1970 (1867-1970) | |
| Early Encounters in North America (1534-1850) | |
| Encyclopedia of Smart Materials | |
| Ethnographic Video Online | |
| Garland Encyclopedia of World Music | |
| GeoRef (1785-) | |
| Index of Christian Art | |
| John Johnson Collection | |
| Kirk-Othmer Encyclopedia of Chemical Technology | |
| MasterFILE Premier (1984-) | |
| North American Indian Thought and Culture | |
| North American Theatre Online | |
| Oxford Art Online | |
| Oxford Music Online | |
| Phase Equilibria Diagrams Online | |
| Reaxys (1772-) | |
| Reference Manual for Telecommunications Engineering | |
| RIBA British Architectural Library (1984-) | |
| SciFinder (1907-) | |
| Smithsonian Global Sound | |
| Social Explorer (1790-) | |
| Texas Reference Center (1980-) | |
| Twentieth Century North American Drama (1887-) | |
| Ullmann's Encyclopedia of Industrial Chemistry | |
| Women and Social Movements in the United States, 1600-2000 (1600-2000) | |
