Abstract: A user utilizes an electronic device in order to browse an online store and to tag images of products, by selecting such images, or by dragging-and-dropping such images onto a dedicated on-screen toolbar. The tagged images from multiple online stores are stored in a repository, together with data identifying the tagged products, their prices, and the online stores that sell the tagged products. A matching module determines which offline stores sell the tagged products. In response to a user command, a digital map is generated, showing offline stores which sell offline the tagged product and which are located within a user-defined distance from a particular user-defined geographical location.