This category includes sites for agricultural businesses, such as vineyards, farm markets, "pick your own" farms, livestock auctions, livestock breeders, seed farms, tree farms, commercial nurseries and turf farms. Sites offering information about local agricultural methods are listed under Science_and_Environment/Agriculture.

The Business Services sector broadly covers establishments and industries that provide professional and administrative support services to a variety of businesses (e.g. B2B) and organizations (e.g. B2G). In some cases, these companies also provide services to consumers, but providing services to other enterprises is their main focus.

The Energy_and_Environment sector covers distinct, but increasingly interdependent industries. This category includes the following: * Industries engaged in the electric power generation industry. * Industries engaged in oil and gas exploration, refining, storage, distribution, and marketing. * Providers of electric, water, and gas services (e.g. utilities). * Industries developing renewable and alternative energy sources. * Industries providing environmental protection and safety equipment and services, such as pollution control products, waste management, recycling operations, and waste-to-energy products. This category also includes information resources covering these industries, such as associations, reference resources, news, etc.

This category will list companies that produce products from raw materials and the companies that support them, such as distributors, wholesalers, industrial supply companies and manufacturing representatives. The general types of companies that will be listed here are food processing, aviation, conveyors, electronic, guns, instrumentation, mining, drilling, chemicals and textiles; however, the list is not limited to these industries.

Companies in industries that have a separate sub-category in Business and Economy will not be listed here. Examples of companies not listed here are agriculture, automotive, computers, home and garden, oil and gas, printing, publishing, and telecommunications.

The Transportation and Logistics sector category includes industries providing transportation of people, cargo, goods, merchandise and products by land, air or sea. Also included in this category are industries and companies engaged in importing and exporting, customs brokers, packing, warehousing, and storage.