A federal judge in New York has set aside the latest version of Google's class action settlement with the Authors Guild over the search giant's scanning and archiving of some 12 million books, many still under copyright. For discussion of what happens now, see this analysis on the Scholarly Kitchen blog, with a list of links to other coverage of the ruling, and a longer review on The Laboratorium.

Monday was the fifth birthday of the micro-blogging service that, among other things, has shortened the distance between news and its readers. Here's a collection of essays from the Poynter Institute, plus a The New York Times story and a video of Twitter testimonials from famous people, some splattered with paint.

Science magazine's Science Insider page contains news stories about the triple calamities as well as a section that answers reader questions, such as "Why Are Spent Rods So Deadly?" and "Are Underground Tsunami Shelters a Good Idea?"