Here is a good example from Harper's on how semantic web can enhance information delivery and brings insights. If you have subscription, read the "Semantic Web in Action" at Scientific American. (Indeed this is available on the web in you search a bit heard)You'll find many interesting cases studies and companies who are prototyping and deploying semantic web applications. If I were running an online journal delivery platform in STM publishing , I would definitely allocate some resources to integrate semantic web applications in it. You may want to listen to John Udell's interviewwith Richard Wallis who is a technology evangelist for Talis.