As it said it would, Chicago public radio station WBEZ-FM (91.5) is finally getting around to expanding the blog presence at its vocalo.org Web address. Joining former Sun-Times radio and TV columnist Robert Feder at the site starting next Monday, Jan. 11, will be architecture critic and former Sun-Times columnist Lee Bey, food reporter and critic Steve Dolinsky and creativity guru and author Amy Krouse Rosenthal.

"We are striving to become the destination where Chicago goes to talk by conscientiously adding voices to the mix who offer a unique and informed perspective and invite dialogue," said Justin Kaufmann, Chicago Public Radio senior content director. Kaufman described Bey as an active participant in the city's architecture and urban planning scene for years, and he called Dolinsky the go-to guy for Chicago restaurant news. Kaufmann also said Rosenthal will invite visitors to her blog to create and connect.

Robert Feder will be back in business come early November. The former Sun-Times columnist, who for nearly 30 years wrote a column for this newspaper about the television and radio business, is joining Vocalo.org, an arm of Chicago public radio station WBEZ-FM (91.5). Feder took a buyout from the Sun-Times a year ago and said he would take 12 months to mull his next career move.

Feder will post a daily column on the Vocalo Web site, which launched in 2007. The Vocalo.org site, according to Feder, was designed to be an interactive public square where people can share ideas and opinions. User-generated audio content also is broadcast via WBEW-FM (89.5), another component of the Vocalo operation. Feder said he will "redefine" his old broadcast beat in his daily postings and report on print, the Internet and "whatever else comes along." Online readers of his new column also will be able to offer instant feedback to create what Feder said he hopes will be a "lively, ongoing dialogue about media issues."