These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.The goal is to fix all broken links on the web . Crawls of supported "No More 404" sites. ||||| On Saturday, the police tracked a signal from the cellphone belonging to Mr. Finocchiaro to the farm. Early Sunday morning, a 1996 Nissan Maxima belonging to another missing man, Tom Meo, 21, was found less than a mile from the farm, at another property owned by the DiNardo family, according to court records. A Nissan sedan owned by Mark Sturgis, 22, was also found Sunday morning, at an outdoor shopping center down the road from the farm. The fourth missing man, Jimi Taro Patrick, 19, was last seen on Wednesday. 
 
 On Thursday, Mr. Patrick’s family released a statement about him, saying he lived with his grandparents in Newtown, Penn., and had just completed his freshman year studying business on a scholarship at Loyola University, Md. 
 
 The police started to closely examine Mr. DiNardo’s possible role in their disappearance early on in the search, and Mr. Weintraub first identified him on Tuesday as a “person of interest” in the case. His home in Bensalem Township, about 30 miles from the farm, was searched on Monday, the same day he was arrested on a previously dismissed weapons charge. 
 
 The farm in Solebury Township is owned by his parents, Anthony and Sandra DiNardo. Responding to reports that the parents were summoned to a grand jury hearing, Mr. Weintraub declined to discuss whether one was hearing the case. 
 
 In addition to the cars’ locations at or near the DiNardo family’s properties, the police said, officers have also uncovered other clues, which came to light in court records on Wednesday. 
 
 Shortly before 8 p.m. last Friday, a license plate reader on a Solebury Township police car captured the license plate of a silver Ford truck, which Mr. DiNardo later told the police he was driving that night. Two seconds later, the license plate reader registered Mr. Meo’s Nissan Maxima driving by. That location is about two miles from where Mr. Meo’s car was discovered on Sunday.
– The family of one of four missing young men in Pennsylvania got the news they were dreading Wednesday night when authorities announced that the body of 19-year-old Dean Finocchiaro had been found in a deep grave on a suburban Philadelphia farm. District Attorney Matthew Weintraub said the body was found in a "common grave" more than 12 feet deep, though he didn't say whether the other remains found belong to the three other men who vanished last week, the Washington Post reports. The farm belongs to the family of Cosmo DiNardo, a "person of interest" in the case who was arrested Wednesday for stealing a car belonging to one of the missing men, the New York Times reports. DiNardo, 20, was bailed out by his father late Tuesday after being arrested on a weapons charge from earlier this year. Bail on the new charges has been set at $5 million. "We bought ourselves a little bit of time" with the stolen car charge, Weintraub told reporters early Thursday, adding that homicide charges are being seriously looked at. Eric Beitz, a friend of one of the missing men, tells the Philadelphia Inquirer that DiNardo sold drugs and guns and once boasted about having somebody killed. "Cosmo has spoken about weird things like killing people and having people killed," Beitz says. "Everybody you talk to about this guy, you hear he’s mentally unstable."