Citysearch Expands Ties With Idearc

West Hollywood-based Citysearch, the local online business guide owned by IAC, said Thursday that the firm has expanded its relationship with yellow pages publisher Idearc Media. Citysearch said it will integrate performance-based advertising from Idearc's site into its publishing network. Citysearch said that as a result, its own advertisers will be included on and, which are both owned by Idearc. Financial details of the expanded relationship were not disclosed.