One of the best, most organized websites to find a surplus of listening quizzes is Randall's ESL Cyber Lab.
Randall's site is well-organized, user-friendly, and applicable for every level. In addition each listening quiz is put together with pre and post listening exercises, vocabulary activities including idiomatic speech, a quiz script, and conversation.
Randall's ESL Cyber Listening Lab - For English as a Second Language
