SAN FRANCISCO (AP) - Twitter has taken four years to allow advertising on its Internet communications service. It's in no hurry to show the commercial messages in other places besides its search results.
Twitter co-founder Biz Stone says the privately held company still doesn't have to sell a lot of ads because it's already making money from search licensing deals with Google Inc., Microsoft Corp. and Yahoo Inc. Stone says Twitter also has plenty of cash left from the $155 million provided by venture capitalists and other investors since the company's 2006 inception.
Stone's comments came during a Wednesday interview at Twitter's first major developers conference.
Twitter made an even bigger splash Tuesday when it began its long-awaited expansion into advertising.
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