- U of Alabama Campus Maps
- U-Chord
- UDictionary Translator
- U-M Fraternity & Sorority Life
- U-M Parents & Family Weekend
- U-M Surgery Education
- U-Point
- U-Prep Panthers
- U. S. Army Echoes
- U.S Colleges
- U.S Navy Ships: A History
- U.S. Airlines, Past & Present
- U.S. Armed Forces
- U.S. Army ASVAB Challenge
- U.S. Army Chaplain Careers
- U.S. Capitals
- U.S. Civics Master
- U.S. Civics Test with Audio
- U.S. Coast Guard MIMH
- U.S. Conference of Mayors
- U.S. Military Cadences — Army, Navy, Air Force, & Marine Corps
- U.S. Museum Locator
- U.S. National Arboretum
- U.S. News STEM Solutions
- U.S. Presidents Facts & Myths!
- U.S. State Capitals! States & Capital Quiz Game
- U.S.A. Presidents Pocket Ref.
- UA Safety
- UAE Numbers أرقام الإمارات
- UAE-Laws
- UAgenda
- UAlbany Bus Schedules and Map
- UAPTC Mobile
- UAW 3058
- UAW LOCAL UNION 3212
- UBDICT - Learner's Dictionary