Motion design has become a huge part of the process behind any product design project. It's impossible to design interfaces without thinking about the different states of the UI. Clicking here will do this and that, the types of transitions and curves. All of these variables are crucial part of the design process. Motion sometimes help visual designers in reducing elements and driving user's attention to an specific part of the UI. Because of the importance of motion I have been paying much more attention to projects that showcase that. Dribbble is a great place to get inspired.