Bartleby.com: Reference Titles — providing students, researchers and the intellectually curious with access to a wide range of classic reference works
Better World Info — directory to thousands of links on global current affairs topics. The creators strive to provide quality links to information devoid of commercial interests
Britannica — online version of the well-respected reference source Encyclopedia Britannica
General Interest Databases at UTD — UTD users only. Access general subject online reference books, journal and magazine databases, and more
Scholarpedia — free peer-reviewed, open-access encyclopedia curated by communities of experts
Symbols.com — online encyclopedia that contains everything about symbols, signs, flags and glyphs arranged by categories such as culture, country, religion, and more