Via BBC News: Sopa: Sites go dark as part of anti-piracy law protests. Excerpt:
Thousands of internet sites are taking part in a "blackout" protest against anti-piracy laws being discussed by US lawmakers.
The Wikipedia encyclopedia and blogging service WordPress are among the highest profile pages to remove material.
Google is showing solidarity by placing a black box over its logo when US-based users visit its site.
The Motion Picture Association of America has branded the action as "irresponsible" and a "stunt".
Visitors to Wikipedia's English-language site are greeted by a dark page with white text that says: "Imagine a world without free knowledge... The US Congress is considering legislation that could fatally damage the free and open internet. For 24 hours, to raise awareness, we are blacking out Wikipedia."
It provides a link to more details about the House of Representatives' Stop Online Piracy Act (Sopa) and the Senate's Protect Intellectual Property Act (Pipa).
If users try to access its other pages via search sites, the text briefly flashes up before being replaced by the protest page. However, people have been sharing workarounds to disable the redirect.
WordPress's homepage displays a video which claims that Sopa "breaks the internet" and asks users to add their name to a petition asking Congress to stop the bill.
"The authors of the legislation don't seem to really understand how the internet works," the site's co-founder, Matt Mullenweg told the BBC.
Across the globe, several Pirate Party sites have been taken offline. The political parties - which advocate reform of copyright laws - took the action in the UK, Spain, Sweden, Argentina, Canada and elsewhere.
Mojang, the developer of Minecraft, has replaced the game's website with a protest message The news recommendation site Reddit, the online magazine Boing Boing, the software download service Tucows and the German hackers' group the Chaos Computer Congress also removed access to their content.
The tech news site Wired covered its headlines and pictures with black boxes which were only removed when covered with the cursor.
The US news website Politico estimated that 7,000 sites were involved by early Wednesday morning.