By Noel Randewich (Reuters) - Salesforce.com Inc's quarterly earnings and outlook disappointed investors as costs rise following a spree of acquisitions, sending its shares lower. Under Marc Benioff, Salesforce's CEO and founder, the company's fast revenue growth has made it a favorite with investors eager to own part of the growing trend among businesses to outsource their information technology needs - from servers to software, a phenomenon known as cloud computing. But Salesforce has struggled to earn consistent profits. ...