Providing telephone numbers, pager numbers, facsimile numbers, names and addresses, URL's and electronic mail addresses; providing information about products or services associated with businesses and business names; maintaining computer database files containing individuals' and/or businesses' customized collections of communications information such as addresses, telephone, pager and fax numbers, e-mail addresses and URL's; providing information about and making referrals for retail services concerning products, services, events, activities, attractions and facilities in particular geographic locations; looking up and providing information about businesses closet to target geographical location; providing information about the goods and services of others via telephone; billing services