research methods

I have proposal about course" research methods " there are tow quesitons(Question 1:In the book P.2 the following statment was provided "A research work is highly significant if it lays the foundation for future work, very significant if it discovers new paradigms or methods that can solve new problems, or quite significant if it outperforms previous methods on some important tasks"Can you give examples for each type?)Question 2:If you want to work in Yahoo or Google or Microsoft what research area you will choose and why?you can use this book(Crafting Your Research Future: A Guide to Successful Master’s and Ph.D. Degrees in Science & Engineering by Charles X. Ling and Qiang Yang, 2012)this book can help you ( online )please dear replay methanks