Additionally, many foreign countries and corporations have established a presence in Houston to access North American business markets. Houston's economy is diverse, including high technology industries, medical research, health care, banking, agriculture, oil and gas exploration, petroleum refining and professional services. The Houston Chronicle serves as Houston's daily newspaper. A multitude of weekly and monthly publications are produced for specialized or neighborhood interests. The Houston area has more than 50 radio stations and 10 television stations.
Cable television is available to the great majority of the area.
Public School Education. Public education within the city is provided by the Houston Independent School District. Additionally, over 20 school districts exist to service the needs of those residing in the greater Houston area. Houston is home to more than 30 colleges and universities, including the University of Houston, Rice University, Texas Southern University, Houston Baptist University and The University of Texas-Houston and Baylor University medical schools. Houston and the surrounding area are served by the Metropolitan Transit Authority, which operates more than 1,000 buses and transports more than 250,000 people each day.