News Corporation owns news and information businesses including The Wall Street Journal, the New York Post, Dow Jones and various other newspaper and digital publishing properties, along with a real estate listings business through its Realtor.com and other property platforms. Its news publishing business has adapted to the broader decline in print newspaper advertising and circulation by building digital subscription businesses, particularly for its flagship Wall Street Journal, which has built a substantial paid digital subscriber base. News Corporation also owns HarperCollins, one of the largest book publishers in the world, giving the company diversification into book publishing beyond its core news and information businesses. The company's revenue combines subscription and advertising income from its news and information properties with real estate listing fees, giving it exposure to both media industry trends and housing market activity through its digital real estate platforms.