You can block these merchant categories:

• Adult and adult entertainment-related services
• Alcohol and Tobacco
• Apparel
• Computers, Supplies and Services
• Construction and Industrial
• Education
• Government and Justice
• Health services and supplies
• Home and garden
• Hotels
• Machinery and equipment wholesaling and services
• Manufacturers
• Motor Vehicles, supplies and services
• Personal, Business and Community Services
• Pubs, taverns and bars
• Recreational clubs, groups, parks
• Religious organizations
• Restaurants
• Sport and entertainment
• Transportation (airlines, car rental, and others)
• Utilities
• Wholesale, retail and department stores
• Gaming and gambling-related services