- Annexation.ca is a political discussion forum dedicated to the exploration of the potentialities for a democratic annexation of Canada to the USA.
- American University's Center for North American Studies (CNAS) educates and promotes policy debates between governments on the North American Region.
- Arizona State University's North American Center for Transborder Studies (NACTS) is a center for scholars regarding the trilateral issues in North America.
- H. Con. Res. 40: Expressing the sense of Congress that the United States should not engage in the construction of a North American Free Trade Agreement (NAFTA) Superhighway System or enter into a North American Union with Mexico and Canada.
- The North American Union Farce by Laura Carlsen, March 3, 2008.
- SPP in the U.S., Canada and Mexico.
- The Trojan Horse, (Official website, IMDb profile). On 30 March 2008, CBC Television aired this two-part science fiction miniseries portraying the merger of Canada and the United States.
- United North America is a non-profit organization that advocates the admittance of Canadian provinces into the United States as new states of the Union, however rejects the idea of Mexico being part of the union.