The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
Trivia Crack - Produced by Etermax, Trivia Crack lets players answer trivia questions and compete against other people on mobile devices.
Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.
QuizClash - In QuizClash, you can challenge your friends or random opponents to a game of trivia.
Ask Me Help Desk - Ask Me Help Desk is a question-and-answer site.
QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.