35 Advertising and marketing; preparing, adjusting and placing advertisements for others; promotion of goods and services of others; business research; market research; analysis of content consumption, trends, and effectiveness of advertisements and promotional and marketing material; marketing strategy; planning, design, development, maintenance, tracking and reporting of marketing activities for others and data relating to advertisements; optimization of advertising, marketing and promotion; consulting services in the fields of optimization of advertising, marketing, and promotion and media buys and strategies therefor; providing data analytics, business analytics, and business intelligence for retrieving, storage, tracking, analyzing, testing, measuring and managing business data, customer data, marketing data, and customer interactions; providing a database for compiling, storing, analyzing, and tracking business data, customer data and advertising and marketing data