Four Wednesday

1. Platinum Equity is exploring a possible sale, er divestiture, of the San Diego Union-Tribune. UT

2. The Associated Press releases new social media guidelines. AP (via Romenesko)

3. Simon Dumenco says punishment of Huffington Post writer for "over-aggregating" copy obscures the fact that over-aggregation of copy is a central Huffington Post strategy. Ad Age

4. Feeling claustrophobic about this weekend's Carmageddon carpocalypse? JetBlue had a solution - for $4, the Car-mageddon fly-over would have taken you from Long Beach to Burbank, or vice versa, allowing you to avoid all ground congestion. The trip would have taken 45 minutes, not counting security checks, but the flights are sold out anyway. JetBlue

Four today

1. Typical elitism. The New York Times has a social media strategy: "Don't be stupid." Business Insider

2. Wired and Planet Money visualize what the (sputtering) economic recovery will look like. Wired

3. MIT has a lab that matches television and ad content to what is being said about them online. AdAge

4. You don't have that many friends: The 150 rule for social media. NPR

Four today

1. New media is just as dicey as old: Digg laid off 25 people, equivalent to 37 percent of its staff. TechCrunch

2. What's worse than elitists? New ones. Charles Murray at WaPo

3. Striking news: Fox News Channel profits from polarization. PoliticusUSA

4. A primer on the newspaper circulation numbers dropping today. AdAge

Four in the morning

1. Twenty-eight-year old Pulitzer winner uses his prize money to establish a fund for rural reporters. IRJ

2. Las Vegas Review-Journal defends its practice of suing over alleged copyright violations. LV Sun

3. Thank god someone is finally giving corporations a chance to be heard. Forbes will run corporate/marketing/advertising blogs alongside staff blogs to make sure these afflicted get the comfort they so sorely need. AdAge

4. I guess since so many journalists have already left, Sidney Harman won't have to fire that many people at Newsweek. Poynter

Four today

1. Once you're out, they won't pull you back in: the reverse-roach-motel effect ... black cars and helicopters ... the neverending campaign ... will the NYT survive? - the David Carr interview (note the comment from former SGVN editor Eddie Barrera at the bottom) Ad Age

2. Alison Hewitt, formerly of the San Gabriel Valley Tribune, looks at UC professors who put their lectures online for free. UCLA Today

3. With hefty chunks of classified advertising now gone, newspapers depend more than ever on legal ads (dbas, calls for bids, public notices, etc.) to boost their bottom lines. In fact, the Washington Post and Richmond Times-Dispatch have both filed lawsuits to block the New York-based Wall Street Journal from publishing legal ads in and around Virginia. VPA

4. The Twitter filter that lets you follow your favorite journalists. Muck Rack