Knight News Challenge introduces new categories

The Knight Foundation announced four new categories for its next Knight News Challenge: mobile, authenticity, sustainability and community. Details at Knightblog and Neiman Labs. The window for entries opens Oct. 25 and closes Dec. 1. The competition backing innovations in news media has awarded $23 million to 56 projects in its first four years; WBUR in Boston and Public Radio Exchange were among this year's winners.