User blog comment:Semanticdrifter/Digital Protest Against the FISA Improvements Act/@comment-24095203-20140204200429/@comment-4811793-20140204200810

SOPA and PIPA were both primarily about copyright and other intellectual property issues. This action is focused on digital privacy and bulk data collection/mass surveillance by intelligence agencies. There is definitely crossover appeal, in that both push for greater transparency as a foundational principle but they are two different problem areas.