Crain’s Chicago Business and the Chicago Reader each announced the appointment of new top editorial executives on Monday.

Jim Kirk, who has been managing editor of the non-profit Chicago News Cooperative for the last nine months, is joining Crain’s as chief of editorial operations, beginning Feb. 24. The new top editorial post will have him overseeing Crain’s growing number of content-based businesses. The Chicago Reader reported Mara Shalhoup, editor of parent Creative Loafing’s alternative weekly in Atlanta, will be its next editor, effective Mar. 7.