Advertising services relating to the provision and promotion of telephone directories and telephone directory business supplements of all kinds (including directories and business supplements provided to users in tangible or intangible form and those held in magnetic, electronic, electro-optic or other media) including: agency services in respect of such directories and business supplements; advertising services promoting the services and goods of advertisers in such directories and business supplements in any medium; advertising survey services, including telephonic and electronic surveys, relating to telephone directories and telephone directory business supplements; and co-operative advertising with those who advertise in telephone directories and telephone directory business supplements