Magento Store Locator Extension is a Magento extension that adds a page showing information for physical stores. It uses Google Maps to show addresses, and allows customers to search for stores by city/country, tags, or distance. Store locations can be easily imported and set up.
Magmi is a mass importer for the Magento e-commerce system. It is most useful when you need to import a big product catalog into Magento, even one with several millions of articles. Moreover, it has many capabilities concerning input data manipulation and an open and flexible plugin model for adding new capabilities.
Marketplace is a multi-vendor marketplace script based on Magento that allows you to set up an e-commerce store in only a few minutes. It features social logins for easier user enrolments, an adaptive payment system that allows administrators to split revenues with their sellers through PayPal, and a simplified checkout page that reduces cart abandonments.