provide multistate regional agencies, States, counties, cities, multicounty planning and development districts, businesses, industries, Indian tribes on Federal and State reservations or other federally recognized Indian tribal groups and others involved with public services and investments in rural areas or that provide or may provide employment in these areas the best available scientific, technical, economic, organizational, environmental, and management information and knowledge useful to them, and to assist and encourage them in the interpretation and application of this information to practical problems and needs in rural development;