The Web and the real world don't always get along. Though the Internet has revolutionized our society in countless positive ways, the always-on network has also created various problems. Ultimately, it's a game of trade-offs: We gain certain benefits from its presence and accept certain drawbacks. In many cases, it's hard to say which side comes out ahead--and in some instances, the pluses and minuses harden into something like open combat. Here are 10 conflicts that pit the Web against the world.