Jun 22 - By Michael Liedtke, AP Technology Writer
Twitter Inc.'s founders still haven't decided how to cash in on their popular Internet messaging service — to the delight of a rapidly growing audience. But the deliberate approach may not prevent a gold rush among opportunistic outsiders.
Nov 20 - By Constant Brand, Associated Press Writer
The European Union's executive body said Thursday that the bloc should try to obtain its fair share of oil, gas, minerals and fish exposed by the melting of the Arctic ice cap.
Feb 11 - By Jeannette J. Lee, Associated Press Writer
New mapping data could bolster any claims the U.S. might make in the Arctic as nations in the region compete for potentially rich reserves of oil, gas and minerals buried beneath the sea floor, federal scientists said Monday.

Aug 10 - By Rob Gillies, Associated Press Writer
Canada's prime minister announced plans Friday for an army training center and a deepwater port on the third day of an Arctic trip meant to assert sovereignty over a region, while Denmark said it was staking its own claim with a scientific expedition.

Aug 7 - By Mike Eckel, Associated Press Writer
The United States and Canada have scoffed at a Russian submarine expedition that planted a Russian flag on the seabed under the North Pole. Coming home to a hero's welcome Tuesday, the famous polar scientist who led the risky voyage did not mince words in responding.

Aug 2 - By Douglas Birch, Associated Press Writer
Two small Russian submarines completed a risky voyage deep below the North Pole Thursday, planting their country's flag in a titanium capsule on the Arctic Ocean floor to symbolically claim what could be vast energy reserves beneath the seabed.

Aug 1 - By Vladimir Isachenkov, Associated Press Writer
An ambitious expedition to bolster Russia's claims to much of the oil and gas wealth of the Arctic Ocean headed to the North Pole on Wednesday, plowing its way through unbroken Arctic ice behind a sturdy Russian icebreaker.