LOS ANGELES (Reuters) - Teen star Miley Cyrus used a rap video on Friday to tell a curious world just why she had abruptly deleted her popular Twitter account.

  HELSINKI (Reuters) - French company Viadeo, which runs a social networking website aimed at professionals, has acquired Canadian peer Unyk, to become the second-largest firm globally after LinkedIn.

  NEW YORK (Reuters) - Users of Microsoft Corp's Sidekick mobile phone may have permanently lost data such as contacts, photos and calendar entries due to the failure of a Microsoft server computer.

  LONDON (Reuters) - British pest control to parcel delivery company Rentokil Initial has chosen Google to manage its electronic communications, making it the largest company to deploy Google's Apps worldwide to date.

  WASHINGTON (Reuters) - U.S. regulators on Friday asked Google Inc to explain how the Internet giant's Voice service blocks expensive calls to some rural areas, after lawmakers demanded an investigation.

  SAN FRANCISCO (Reuters) - Google Inc said on Monday that Arthur Levinson has resigned from its board in a move that appears to defuse regulatory scrutiny into the ties between the boards of Google and Apple Inc.

  LONDON (Reuters) - British media group BSkyB will next week launch Sky Songs, a digital music service it hopes will challenge Apple's iTunes and Spotify in the music downloads business.

  SAN FRANCISCO (Reuters) - Investors are betting on Google Inc's third-quarter results this week to show a recovery in revenue growth, pushing shares of the leading Web search engine to a 12-month high on Monday.

  LONDON (Reuters) - The world's book trade meets in Frankfurt next week on the brink of a long-feared transformation of the industry for which few are well prepared.

  LONDON (Reuters) - A British "UFO eccentric," wanted in the United States for breaking into NASA and Pentagon computers in "the biggest military hack of all time," lost his latest battle to avoid extradition on Friday.