News Corp. is pooling some of its Web sites, including the newly acquired Wall Street Journal properties, to better sell financial ads targeting Latin America.

The new “Worthnet.Fox” network, announced Monday, will be anchored by News Corp.’s Fox International Channels.

Participants include Web sites for The Wall Street Journal, Barron’s and MarketWatch, all of which News Corp. acquired through its December acquisition of Dow Jones & Co.

Ads sold through the network will target online consumers of financial news and investment advice, with a focus on audiences in Latin America.

Other recently launched media ad networks include the lifestyles-focused Martha’s Circle from Martha Stewart Living Omnimedia Inc. and a collection of hundreds of independent financial blogs assembled by the online unit of Forbes Inc.

Of course as now seems to be the norm with Major media, News Corp does not own the domain worthnet.com, that seems to be in the Marchex portfolio as one of the names it acquired from Yung Yee.