Abstract: An online advertisement system provides an advertisement publishing portal for merchants to target specific users based on merchant-defined factors as well as providing users with ways of customizing the selection of advertisements that are displayed on an advertisement application. Merchants can set conditions for the publication of an advertisement. Once the conditions have been met for publishing an advertisement, the advertisement is transmitted to selected users. Users are able to set preferences for allowing advertisements from certain merchants to be saved on the user device. Based on the merchants and the categories associated with the advertisements, advertisements may be blocked, saved or used to generate a push notification to alert the user of the saved advertisements. Merchants may track user actions related to the published advertisements through real-time tracking and analytics offered through the portal.