Providing online non-downloadable computer software for enabling users to identify and communicate with persons to facilitate and enable access to homes, garages, buildings, dwellings, and residences; Providing online non-downloadable computer software for enabling users to identify and communicate with persons to facilitate and enable access to homes, garages, buildings, dwellings, and residences using near field communication (NFC) technology; Providing online non-downloadable computer software for enabling users to control, manage, monitor, and permit access to homes, garages, buildings, dwellings, and residences