http://booksonthesubway.com/
Final Cut Pro X: Keyboard shortcuts
https://support.apple.com/kb/PH12724?viewlocale=en_US&locale=en_US
Changing the Default PDF Viewer on Your Mac
https://discussions.apple.com/thread/2754284?tstart=0
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Hello world!
Welcome to CityTech OpenLab. This is your first post. Edit or delete it, then start blogging!