Question: Move Your Domain Day is a domain name transferring initiative, initially in response to GoDaddy's support of the United States Stop Online Piracy Act (SOPA), first held on 29 December 2011, originating from a post on which American social news aggregation, web content rating, and discussion website?
Sentence (from "Reddit"): Content entries are organized by areas of interest called "subreddits".
Relevant evidence: No