An Internet search engine is configured to provide information to a user of the service in ranked order according to demographic profile information about the user provided by the user. Such information might include advertising information and/or search results (e.g., rendered as hyperlinks) to search queries posed by the user. The information may be returned in a ranked order according to reward credits offered by advertisers and/or content providers associated with the advertising information and/or web sites represented by the search results. Such reward credits may be posted to an account maintained by the user upon selection by the user of cursor-selectable objects (e.g., icons, banner ads, hyperlinks, radio buttons, check boxes, etc.) associated with the advertising information and/or search results. Ultimately, the reward credits may be redeemed through the Internet service for cash, Internet content or other value. A process for verifying whether or not an Internet operation (e.g., sending an e-mail message or accessing a web site) is being attempted by a human being or an automated process may be incorporated with the service by using a quiz process that requires user interaction.