The most outspoken protester of the bills today will be Wikipedia, whose English site will be going dark for the full 24 hours on January 18th, starting at midnight ET. It’s also joined by Reddit, which will replace its usual “glorious, user-curated chaos” with a message noting its opposition to SOPA and PIPA, accompanied by links to more information about the bills and suggested ways to express your own dissatisfaction with them.

And a short video explanation of SOPA:

The full list of sites joining today’s protest can be found on the SOPA Strike website.