Communications

• Supercomputer Visuals Without Graphics Chips
  Computer scientists are visualizing the world's most gigantic datasets without graphics clusters.

• A Better Way to Rank Expertise Online
  New software distinguishes between experts and spammers, showing who can be trusted.

• Crowdsourcing Closer Government Scrutiny
  Web volunteers are helping to make the U.S. government more accountable.

• A Better Way to Shoot Down Spam
  Junk mail can now be identified based on a single packet of data.

• How to Land Safely Back on the Moon
  A hazard-detection system promises safe landings for next-generation lunar explorers.

• A Reporter's Moon Trip
  The rewards of reporting an epic journey of man are more than the excitement of the moment. The audience shares new perspectives on another world.

• Light Repels Light
  The repulsive side of an optical force could lead to ultra-fast telecommunications.

• Data Overload on Dating Sites
  The information overload caused by too much choice could have lessons for other websites.

• Who's Typing Your Password?
  By watching how passwords are entered, a company hopes to make log-ins more secure.

• Catching Spammers in the Act
  Researchers show how spammers harvest e-mail addresses and send out bulk messages.

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