Reuters - Wed, May 23, 2012SAN FRANCISCO (Reuters) - Top European software company SAP AG plans to buy Ariba Inc in a deal valuing the business and commerce network company at $4.3 billion (2.73 billion pounds), its latest manoeuvre against Oracle in the fast-growing Internet-based computing market. SAP is taking aim at Oracle, the world's No. 2 maker of business management software, as they vie with Salesforce.com Inc in the multibillion dollar cloud-computing services market, one of the industry's hottest area of growth. ... More »SAP to buy Ariba, boosts cloud bet