| XBOX Nation | 11/01/2002 - present | MasterFILE Premier | |
| XBOX Nation | 11/01/2002 - present | Middle Search Plus | |
| XBOX Nation | 11/01/2002 - present | MAS Ultra - School Edition | |
| XDSL News | 2002 - 2003 | Business & Industry | |
| XDSL News | 2002 - 2003 | Business and Management Practices | |
| Xenobiotica | 0049-8254 | 01/01/1997 - 1 year ago | Academic Search Premier |
| Xenotransplantation (Københaven) | 0908-665X | 01/01/1999 - 1 year ago | Academic Search Premier |
| Xinhua Economic News Service | 10/12/1999 - present | LexisNexis Academic | |
| Xinhua News Agency - French | 11/11/2002 - present | LexisNexis Academic | |
| Xinhua News Agency - Spanish | 11/11/2002 - present | LexisNexis Academic | |
| XML journal | 10/01/2001 - present | Expanded Academic ASAP | |
| xSP Advisor | 04/11/2001 - 10/02/2002 | MasterFILE Premier |