Struggling online video startup Joost, begun with much fanfare in 2007 by the same people behind Skype and Kazaa, is restructuring its business after discovering that it can’t survive on advertising to fund its operations.

The chief executive, Mike Volpi, has stepped down but will remain as chairman.

The London-based company said it will shift its focus from being an online video site for consumers supported by advertising - similar to Google Inc.’s YouTube. Instead, it will help businesses manage their videos on the Internet as they build brands.

Its target market will be media companies such as cable and satellite TV providers, broadcasters and video aggregators.

“In these tough economic times, it’s been increasingly challenging to operate as an independent, ad-supported online video platform,” Volpi said in a statement.

Joost was co-founded by Janus Friis and Niklas Zennstrom, the same people behind Internet phone service Skype and the file-sharing site Kazaa. It has minority investments from Viacom Inc. and CBS Corp.

It started as a peer-to-peer sharing site but wasn’t successful, then switched to online video. But Joost has suffered from poor traffic and had trouble making money.

Joost, which also has offices in New York, is closing its Leiden office in the Netherlands. The company declined to say how many people it’s laying off.

Television host Jay Leno has won control of a Web address using the name of his new show.

The U.N.’s World Intellectual Property Organization says current owner Guadalupe Zambrano of Katy, Texas, will have to transfer the domain name - thejaylenoshow.com - to the comedian.

The agency says Zambrano failed to demonstrate he had a legitimate reason for registering the address five years ago while Leno was still hosting “The Tonight Show.”

Zambrano used the site to redirect Web surfers to his real estate business.

The Associated Press is digitizing and has begun to release a “treasure trove” of historical film footage from the 1960s and ’70s that had been sitting in Gen. Dwight D. Eisenhower’s former World War II headquarters in London.

The archive includes color film recordings of a young Yasser Arafat, Libyan leader Moammar Gadhafi immediately after taking power, Richard Nixon with Romanian dictator Nicolae Ceausescu, Fidel Castro meeting Latin American and Eastern European leaders, as well as a young Saddam Hussein in Paris.

“The range and quality of what we’re finding in this lost archive is breathtaking and it’s incredibly exciting to be unearthing new history in this way,” said Alwyn Lindsey, AP’s director of international archives.

The footage had been sitting for decades in the Central London bunker, from which Eisenhower directed the D-Day landings.

Although the films have been well-preserved, the text that accompanied them has been scattered across the United States and the United Kingdom, the AP said. That text catalog was key to identifying the footage held in each of the 20,000 film cans.

AP’s footage business, AP Archive, brought in leading archival researchers to create a coherent online text database from the scattered paper records. The films are being cleaned, restored and transferred onto high-definition videotape for professional producers. They are also being digitized for viewing online.