Liane Hansen, host of NPR’s Weekend Edition Sunday since 1989, plans to leave the program next May. She’ll be visiting public radio stations over the next year while other NPR journalists take turns behind the mic. “It’s not you, it’s me,” she said in a letter to listeners broadcast on Sunday. “I’ve made the personal decision to move to where I have always wanted to live — by the ocean.” Hansen will continue working for NPR as a freelancer once her contract as WESUN host expires. In other people news, former NPR correspondent Kim Masters will join the Hollywood Reporter as editor-at-large. She’ll continue to host The Business, KCRW’s weekly show about show business. And, NPR has tapped Brian Mann of North Country Public Radio to join its team covering the Gulf Coast oil spill. Mann began his career covering the Alaskan oil industry and the Exxon Valdez spill. His NPR assignment begins June 6.