$4.)$ How should Google compete with giants Yahoo! and Microsoft, while remaining true to the company$$s core search engine business?

$5.)$ What role should Larry Page and Sergey Brin play? What role should Cindy McCaffery, the Vice President of Corporate Marketing $($also in charge of Google$$s corporate communication$)$ play?

$6.)$ Can Google maintain its unique corporate culture and management structure as a public company? If so$,$ how? If not, how should they change?