The user-generated news site Reddit and the blog Boing Boing are also taking part in the "blackout".

BBC: Wikipedia joins blackout protest at US anti-piracy moves

Slashdot, a user-generated news, analysis, peer question and professional insight community.

ENGADGET: Dice Holdings buys Slashdot, Freecode and SourceForge for $20 million

Even as we encourage everyone in the newsroom to embrace social media and relevant tools, it is absolutely vital to remember that the purpose of these Post branded accounts is to use them as a platform to promote news, bring in user generated content and increase audience engagement with Post content.

FORBES: WaPo's Twitter-Based Scuffle with GLAAD: When Social Media Engagement Goes Wrong

Lizzie Hodgson, 38, turned to Startup Compass recently to see how her year-old company, Civicboom, which lets news organizations access and verify user-generated images and videos, stacked up against other tech start-ups.

WSJ: Learning How Your Start-Up Stacks Up

For example, a news organization may want to have a "high priority" transcoding pipeline for breaking news stories, or a User-Generated Content website may want to have separate pipelines for low, medium, and high resolution outputs to target different devices.

ENGADGET: Amazon wants to make your hi-res videos mobile-friendly with Elastic Transcoder

Named after a much-mocked hairstyle that's short and neat in front but long and unkempt in back, mullet strategists maintain a spiffy, well-groomed front page they can show to advertisers while serving most of their actual page views on a constellation of low-quality discussion boards, sexed-up celebrity news bits and user- or auto-generated content.

FORBES: Magazine Article