Real Cities Network has added 51 of MediaNews Group's properties to its ad network, reports ClickZ.

McClatchy Interactive's Real Cities currently sells ads on 31 sites owned by MediaNews Group. The new deal adds newspaper properties in California, Pennsylvania and other top markets.

The expanded relationship does not, McClatchy says, affect the status both publishers have as part of Yahoo's "newspaper consortium." In fact, McClatchy's David Fitzpatrick says, the deal is helping to foster deeper ties overall between members.