I enjoyed this article about Swedish software (now headquartered in San Mateo--that Silicon Valley pull is hard to resist) Neo Technology, whose graphic database Neo4j allowed investigative journalists to make connections between the vast amounts of data contained in 11.5 million documents. Equally fun for me is that an MIS professor at the business school forwarded me the article because a project on which we're collaborating will use Neo4j. I'm cutting edge!
Neo Technology has paying clients that use the technology to crunch data in the service of worthy goals like giving online purchasers customized recommendation (Walmart) and fraud prevention (UBS). But here's the money quote: "Eifrem lets investigative journalists use the free version of his software. 'I’m not in the business to make money out of eight journalists who are trying to save the world—that’s not my business model,' he said, laughing."