Thanks for watching that YouTube video! That will be 50 cents, please. Sound unrealistic? It's actually a distinct possibility, after a Federal appeals court on Tuesday struck down an FCC ruling meant to prevent an Internet service provider -- the company you pay for online access -- from prioritizing some website traffic over others. And because that rule was wiped off the books, those ISPs are suddenly able to do just that. With service providers suddenly able to charge based on the type of content you watch or the sites you visit, it's easy to imagine a system like that...