Method and system for creating one or more advertising avail sections (subavails) and thereupon aggregating the subavails to form one or more groups of subavails. The advertisement opportunities (avails) may be divided into sections (subavails) with each section being directed at a particular target audience (group). The subavails are then aggregated into one or more groups of subavails so that the groups of subavails can be sold to the advertisers. The grouping of subavails is generally based on a correlation wherein the subavails are characterized based on one or more characteristics. The groups of subavails are formed based on one or more shared characteristics. The advertiser has an option to buy a group of subavails (rather than an avail in prior art), whereby the advertiser may reach a targeted group of an audience.