City of Denison, Texas:

http://www.cityofdenison.com/

Art / Events / History:
http://www.smalltownbigart.com/

Lake Texoma:
http://www.laketexoma.com/

Eisenhower State Park:
http://www.tpwd.state.tx.us/park/eisenhow/

Weather:
http://www.wunderground.com/US/TX/Denison.html

Chamber of Commerce:

http://www.denisontexas.us