With enterprise data volumes growing, business and IT leaders face significant opportunities and challenges from big data. Using cloud-computing technologies, organizations are experimenting with distributed data stores, cloud compute capacity for data analytics, hosted data integration and even operational databases in the cloud. Hadoop/MapReduce, meanwhile, has moved past test and development stage to become a viable extension or alternative to traditional relational databases. Though the space is not without its obstacles, including plenty of privacy concerns, there are numerous sales-growth opportunities and new business models finally surfacing in 2011. Companies mentioned in this report include Google, IBM, Apple, Oracle, Salesforce and VMware. For a full list of companies, and to read the full report, sign up for a free trial.