* Author of ''Google Adwords - Art of War,'' first a book about Google Adwords sponsored links in Brazil.<ref>[http://www.circleid.com/members/2541/comments/ CircleID]</ref> | * Author of ''Google Adwords - Art of War,'' first a book about Google Adwords sponsored links in Brazil.<ref>[http://www.circleid.com/members/2541/comments/ CircleID]</ref> |