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This one is good as well: http://imakewebthings.com/jquery-waypoints/
Here’s a tutorial on how to use it: http://tympanus.net/codrops/2013/07/16/on-scroll-header-effects/
Frontend Masters is the best place to get it. They have courses on all the most important front-end technologies, from React to CSS, from Vue to D3, and beyond with Node.js and Full Stack.