Today, the Wikipedia community announced its decision to black out the English-language Wikipedia for 24 hours, worldwide, beginning at 05:00 UTC on Wednesday, January 18.
The blackout is a protest against proposed legislation in the United States — the Stop Online Piracy Act (SOPA) in the U.S. House of Representatives, and the PROTECT IP Act (PIPA) in the U.S. Senate — that, if passed, would seriously damage the free and open Internet, including Wikipedia.
https://wikimediafoundation.org/wiki...-SOPA_blackout
https://wikimediafoundation.org/wiki...dia_to_go_dark