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Grockit Answers is just-in-time Q&A for video lectures. In Grockit Answers, interactions happen around video lectures, and participants ask and answer questions about specific points in the lecture. Since every question is attached to a specific point in time in the video, Grockit Answers displays a question and its answers at the point in the lecture that they are most relevant. And since the things that confuse you are likely to be the same things that confuse others, you'll find that answers to your own questions pop up on the screen just as you're starting to get confused.
Welcome to YouTube! The location filter shows you popular videos from the selected country or region on lists like Most Viewed and in search results.To change your location filter, please use the links in the footer at the bottom of the page. Click "OK" to accept this setting, or click "Cancel" to set your location filter to "Worldwide".