Tumblr.com offers bloggers the opportunity to black out their own blog in protest of SOPA.
Many sites displayed this message, which provides a link to the SOPA petition site americancensorship.org.
www.mozilla.com
www.google.com
The creator of Icanhazcheezburger.com notifies users via Twitter of its shutdown.
www.reddit.com
Efforts to fight the proposed Stop Internet Privacy Act (SOPA) before Congress changed the face of the Internet on January 18. Here are some sites that have blacked out or altered their homepages.