First Homework

http://www.smallbusinesscomputing.com/testdrive/article.php/3855806/What-Is-Green-IT-and-Why-Should-You-Care.htm

A short explanation what Green IT itself is. Advantages and examples in a short form.

https://www.youtube.com/watch?v=350Rb2sOc3U

A somewhat good introduction to Green IT. Videos are often easier way to enter a new subject.

http://www.cloudbus.org/~raj/papers/Cloud-EnvSustainability2011.pdf

A more scientific approach. Detailed research about cloud computing and related energy efficiency. Still understandable for a simple industrial management student.