Oil eases below $72 on demand doubts

U.S. crude oil slipped below $72 a barrel on Friday, snapping a three-day winning streak as investors questioned whether the pace of demand recovery justified current prices. U.S. crude for October delivery

Twitter expands rules to allow advertising

Twitter, the fast-growing microblogging site now seeking ways to make money, expanded its terms for users on Thursday to allow advertisers to reach the Internet site's more than 45 million monthly visitors.