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Philadelphia District Attorney Seth Williams is known as an avid user of Facebook. But he has some complaints, and on Monday he took one gripe right to the top: Facebook founder Mark Zuckerberg. Williams called on Zuckerberg to be a "good corporate citizen" by ordering Facebook to remove the page of a Philadelphia man Williams alleges used it to solicit the killing of a witness in a case involving illegal firearm purchases. So far, Facebook - if not Zuckerberg personally - has said no, because Freddie Henriquez's page urging people to "kill rats" does not violate any of Facebook's terms of use. "I asked to be district attorney.

SETH WILLIAMS isn't liking Facebook too much at the moment. On Monday, the district attorney called a news conference to ask the social-media site to remove a Philadelphia man's page that urges people to "kill rats. " Williams said that the man, Freddie Henriquez, used the site to solicit the killing of a witness in a criminal case involving purchases of illegal firearms. Williams said that he sent a letter to Facebook founder and chief executive Marc Zuckerberg asking him to remove the page and deactivate the Facebook account.

Question: A close friend of mine has a new girlfriend. I don't like her. She's treated me with disrespect and she doesn't seem to be a nice person. She's said some really mean things about people right in front of them. I'm planning on having a housewarming party. Is there any way I can say my friend is invited, but I don't want him to bring his girlfriend over when I'm hosting events? Answer: When she's said these mean things, you've asked her to clarify/apologize/step off, right?

Workers who gripe about the boss or their colleagues on Facebook may again be at risk of getting fired unless a U.S. appeals court decision is reversed. The National Labor Relations Board ruled last year that employees can use social media to complain or comment on management, without retribution. The decision was among 220 issued in 2012 by the five-member board, three of whose appointments were ruled invalid last week by the U.S. Court of Appeals in Washington. "It puts all of the board's actions into question," said Jeffrey Hirsch, a professor at the University of North Carolina School of Law. "If you're an employee who's been fired, and you want your job back, you're not going to get it until this is resolved.

THE SEARCH continues for a beloved New Hope bartender who disappeared without a trace over the weekend. Sarah Majoras, 39, was last seen crossing the bridge from New Hope to Lambertville, N.J., on foot - headed toward her home in Lambertville - about 2 a.m. Saturday after she left John and Peter's Bar, on Main Street in New Hope, according to the Hunterdon County Prosecutor's Office. She was reported missing about 2 p.m. Saturday. Majoras, who works at John and Peter's, is 5 feet 4, 140 pounds, and has blond hair and blue eyes.

MENLO PARK, Calif. - Facebook CEO Mark Zuckerberg unveiled a new search feature Tuesday that's designed to entice people to spend more time on its website and will put the social networking company more squarely in competition with Google and other rivals such as Yelp and LinkedIn. Called "graph search," the new service lets users quickly sift through their social connections for information about people, interests, photos and places. It will help users who, for instance, want to scroll through all the photos their friends have taken in Paris or search for the favorite TV shows of all their friends who happen to be doctors.

Question: How do I break the news to my friend that I have been seeing her (recent) ex-boyfriend? I'm prepared to lose the friendship, but I want to minimize how hurt she gets, if possible. I guess I'm thinking specifically of altering the timeline, so there's more distance between when they broke up and when we started dating. Answer: The first three letters of "timeline"? TMI. Oh, close enough. To be clear, you and he have already taken the action that hurts your friend, so there's no altering history to cover your backsides.

High school sophomore Thanasis Narliotis needed cash. So he spread some baseball team caps, old skateboards, a boom box, sunglasses, and a few shirts out on his bed and snapped a quick photo. Minutes after he posted it on Facebook with the caption "See what u want. Make me an offer," the bids started rolling in. Narliotis posted on "One Man's S- is Another Man's Treasure," a Facebook group dedicated to the buying and selling of the necessities of a teenage boy's life: video games, gaming systems, sneakers, headphones, T-shirts, sports equipment, and phones.

NEW YORK - Instagram, the photo-sharing service, said it will revise a planned update to its service agreement after confusion about its intent led to widespread user complaints Tuesday. At issue was whether users' photos can be part of advertisements, on and off Instagram. The company said in a blog post that it had no plans to put users' photos in advertisements. That said, Instagram maintains that it was created to become a business and would like to experiment with various forms of advertisements to make money.

A20-YEAR-OLD Kensington man is accused of using Facebook to threaten witnesses who were to testify against his friends in a weapons case. Freddie Henriquez allegedly obtained a witness' statement and posted images of it on Facebook, accompanied with a caption that said "RATS. " Henriquez also posted other threatening messages on Facebook, authorities say. In an August post provided by prosecutors, he wrote, "KILL RATS point blank period. " Those threats came after four of his associates were arrested in February for an alleged conspiracy involving straw purchases of firearms.