Rupert Murdoch may remember this week: five top UK staffers arrested for bribery. Pew found even legacy media struggles to entice advertisers online. Media deaths: Whitney Houston and Anthony Shadid.

GigaOm added paidContent to its tech publishing empire this week. San Diego U-T talks about starting a TV network. And Superbowl XLVI claims “most streamed online sports event ever.” So far.

Huge public reaction reversed the Komen foundation decision to end grants to Planned Parenthood. FB formally announced IPO plans, and the White House hosted its first Google+ hangout this week.

TV viewing of the State of the Union dropped compared to last year, but comments on social media came faster than ever. Also this week: the U.S. rank in press freedoms dropped over Occupy.

This week: Changing the GOP game again, Newt Gingrich wins the South Carolina primary. New Yahoo CEO Scott Thompson announced “small, across-the-board” layoffs. And Wikipedia, Reddit and many others blacked out their sites for a day, winning at least a delay to SOPA legislation in Congress.

This week Wikip, Craigslist and others black out text and pages, concerned over SOPA legislation; the NYT overhauls iconic Week In Review; and Rick Perry quits the presidential race.

A best of the weekly tweet beat, from our stream to yours. Plus handy tips and links how to break the twitter code and join the conversation.

The presidential race got going with a record: GOP nominee Mitt Romney beat Rick Santorum by eight votes in the Iowa caucuses. 2012 predictions continue; one sees local businesses in a big shift to ads in social media.

The NYT Co. sells off its regional papers, plus reviews and predictions on media kept coming the last week of the year. Newspaper job cuts reportedly rose 30% in 2011. Record campaign ad spending forecast 2012.

This week the world watched the last US troops leave Iraq, saw a Saudi prince reveal a $300M investment in Twitter, and got a new FCC push to loosen cross-media ownership rules.