Abstract: A system for location-based online shopping by which users may make offers to, or solicit offers from, vendors in a particular geographic area, and for almost simultaneously providing advertising to the users is disclosed. Data is received from a user via an electronic communication device, the data designating a product or service of interest to the user and a geographic area in which the user desires to shop. Vendors of the designated product or service in the designated geographic area are selected, and a request related to the designated product or service is sent to the selected vendors. One or more advertisements related to the designated product or service are then sent to the electronic communication device in response to the data received from the device.