HowStuffWorks "How Web Advertising Works": "You have probably noticed that across the Web, two different things are happening right now:
1. More and more sites are asking you to pay a fee to subscribe to all or part of the Web site.
2. Advertising is becoming more and more 'in your face.' There are now pop-up ads, ads that play music and sound tracks, ads that swim across the screen, and so on."