Providing information in the field of real estate; Providing real estate listings and real estate information via an internet website and mobile application; Providing information in the field of real estate by means of linking a web site to other web sites featuring real estate information and real estate agent contact information; Providing an interactive real estate website and mobile application that provides home value and sales information to potential buyers and sellers; Providing real estate buyers and sellers with information and referrals to real estate agents via an internet website and mobile application; Providing real estate agents with information on customers seeking real estate services; Providing referrals in the field of real estate; Providing real estate housing and agent locator assistance and personal profile information on agents and housing via an internet website and mobile application; Providing a database of information about residential real estate listings in different neighborhoods and communities; Providing referrals in the field of home renovations and repairs; Providing online financial calculators; Providing online tools for estimating the cost of home renovations; Providing online tools for estimating residential short-term and long-term rental income; Providing information via websites and mobile applications pertaining to third-party estimates of residential real estate values