From the link I previously posted, explained in layman's terms. (FFXIAH site is one I use for an online game I play)
http://www.ffxiah.com.../28155/sopa-and-pipa/
««« SOPA and PIPA essentially remove the Safe Harbor provision. In other words, if one of you decides to link to copyrighted content on our forum, we are now directly and personally responsible, and can theoretically be sued for copyright violation as though we were the ones doing it ourselves. Similarly, if a site we link to (like wikia) decides to violate copyright, we can also be held responsible just for linking to them.
Worse, the bills remove the requirement to even take us to court. Copyright holders themselves (private entities) can now go straight to the internet's DNS authorities (the master address listing for all sites on the web) and file a complaint. This will immediately knock FFXIAH.com offline without so much as a court ruling. It's then incumbent upon us to fight back in court and earn the right to bring the site back.
Copyright holders argue this is necessary because they lose money for every second a site is allowed to link to, or feature, copyrighted content. They argue they need ultimate power to knock sites off the internet immediately, and only deal with the burden of proof later.
They promise to only use their new powers "sparingly" and "responsibly." I'm sure you can all guess how that one will end.
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This makes the internet a very dangerous place to operate. Google could be held responsible for returning links to any sites that could even possibly feature copyrighted content. (Which is most of them.) We could be forced to pre-censor all forum and user content for copyright violations before we could even put them online. Arguably, MMO's couldn't even allow users to speak freely in chat, as they might mention something copyrighted, which would make the MMO companies themselves legally responsible, and capable of being knocked offline without trial at the first complaint. Sites like Wikipedia, which are based entirely on user content, probably couldn't operate at all due to the inherent dangers. The effects would be widespread and very chilling to how the internet operates. »»»