| TableBase (1992-) | |
| Teatro Espanol del Siglo de Oro (1500-1700) | |
| Techstreet (FileOpen Plug-in Required: Install from Techstreet Page) | |
| Tests in Print (1985-) | |
| Texas Almanac | |
| Texas Digital Library | |
| Texas Digital Sanborn Maps (1867-1970) | |
| Texas digital Sandborn maps (1867-1970) | |
| Texas Reference Center (1980-) | |
| The Papers of James Madison Digital Edition/ | |
| Theatre in Video | |
| Thesaurus Linguae Latinae | |
| ThomasNet | |
| TOC Premier (1985-) | |
| TOPICsearch | |
| Twayne's Authors Series | |
| Twentieth Century Advice Literature | |
| Twentieth Century African American Poetry (1901-1999) | |
| Twentieth Century American Poetry (1901-2000) | |
| Twentieth Century English Poetry (1901-1999) | |
| Twentieth Century North American Drama (1887-) | |
| Twentieth-Century Literary Criticism | |
