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Preview of Google PLus's value to HE Excerpt: "Facebook does allow some selective sharing, but doing so is difficult to master. As a result, many professors have decided to reserve Facebook for personal communications rather than use it for teaching and research. "I don't friend my students, because the ability to share is so clunky on Facebook," says Jeremy Littau, an assistant professor of journalism at Lehigh University. "This gives us ways to connect with people that we can't do on Facebook." In Google Plus, users can assign each new contact to a "circle" and can create as many circles as they like. Each time they post an update, they can easily select which circles get to see it. B.J. Fogg, director of Stanford University's Persuasive Technology Lab and a consulting faculty member for computer science, says he plans to use Google Plus to collaborate on research projects: "Probably every project in my lab will have its own circle." Mr. Littau is even more enthusiastic. He posted an item to his blog on Thursday titled: "Why Lehigh (and every other) University needs to be on GPlus. Now." "I want to start using this in my class next term," he says, adding that he aims to expose his students to the latest communication technologies in all of his classes. He plans to try the video-chat feature of Google Plus, called "hangouts," to hold office hours online. The new system allows up to 10 people to join in a video chat. Mr. Littau may also hold optional review sessions for exams using the technology. "I can host chats a few nights a week," he says."