The New York Times periodically publishes a new installment of its engaging (though fairly high level) grammar interactive they call “Copy-Edit This,” and they just published a new one.
They hadn’t made them accessible in one place, however, and that’s why I linked to all of them in The Best Interactive “Copy-Edit This!” Grammar Quizzes In The New York Times.
Today, though, they finally decided to link them together. However, instead creating a common “tag,” now each one has a link to the previous one but not to any others. A bit odd, but I guess it works.