A networked system is disclosed for presenting advertising during on-line interactions between a user and a service of a network (e.g., the Internet, interactive cable, and/or a LAN). Advertisements (ads) are presented to a networked user unrequestedly during user interactions with the service. The user can activate the ads (via hyperlinks) for receiving additional advertising. The system gathers user data and/or develops user profiles for selectively presenting ads, promotionals, discounts, etc. targeted to receptive users. In exchange for viewing such selective presentations, on-line access to the service is provided, the service including, e.g., (a) playing on-line interactive games (e.g., blackjack and poker), (b) providing access to the network itself (e.g., an Internet service provider), and/or (c) providing access to substantially any interactive service accessible via (b). The system can provide free/reduced cost network services to the user for viewing unrequested advertising. The system can be provided for a casino.