“You have a Web server with static pages. Sally’s Sad Saab Shop gave you $200 to run a banner ad for a week. You want to be able to tell Sally ‘332 people clicked from my site to yours in that week.’ Sally may not have her own Web server and/or may not understand how to analyze the referer header log. You don’t want to sweat your way through all of Web Tools Review and learn how to run your own Relational Database Management System-backed Web site. You don’t want to spend the rest of your life backing up and maintaining the relational database. That’s where clickthrough.net comes in.”