All 2012 candidates so far:

Green Party

• Jill Stein, medical doctor from Massachusetts; vice-presidential nominee: Cheri Honkala, anti-poverty activist, from Pennsylvania.

Libertarian Party

• Gary Johnson, former governor of New Mexico; vice-presidential nominee: Jim Gray, retired state court judge, from California

Americans Elect

• No candidates met the requirements to enter into the Americans Elect online caucus, so on May 17 the primary process came to an end without a nominee. Nevertheless, the leaders of the organization have not yet ruled out the possibility of running a presidential candidate in 2012. At that point, the organization had gained ballot access in 29 states with more than 270 electoral votes.

Ballot access to fewer than 270 electoral votes

The following parties have gained access to at least one state ballot.

Constitution Party

• Virgil Goode, former U.S. congressman, from Virginia; vice-presidential nominee: Jim Clymer from Pennsylvania

Justice Party

• Rocky Anderson, former mayor of Salt Lake City and founding member of the Justice Party, from Utah; vice-presidential nominee: Luis J. Rodriguez from California.

America's Party

• Tom Hoefling, National chairman of America's Party, from Iowa; vice-presidential nominee: J.D. Ellis from Tennessee

Party for Socialism and Liberation

• Peta Lindsay, anti-war activist from Pennsylvania; vice-presidential nominee: Yari Osorio

Peace and Freedom Party

• Roseanne Barr, comedian from Hawaii; vice-presidential nominee: Cindy Sheehan from California.

Socialist Workers Party

• James Harris, political activist, of New York. Vice-presidential nominee: Maura DeLuca of Nebraska

Reform Party USA

• Andre Barnett, entrepreneur, from New York; vice-presidential nominee: Ken Cross, former engineer, from Arkansas

Objectivist Party

• Tom Stevens, attorney and 2008 Objectivist Party presidential nominee, of New York; Vice-presidential nominee: Alden Link of New York

American Third Position Party

• Merlin Miller, Independent Filmmaker, of Tennessee; vice-presidential nominee: Virginia Abernethy of Tennessee

Socialist Party USA

• Stewart Alexander from California; vice-presidential nominee: Alejandro Mendoza from Texas.

Socialist Equality Party

• Jerry White, journalist and 1996 and 2008 Socialist Equality Party presidential nominee, of Michigan; vice-presidential nominee: Phyllis Scherrer, of Pennsylvania

Grassroots Party

• Jim Carlson, businessman from Minnesota; vice-presidential nominee: George McMahon

Independent candidates

The following independent candidates have gained access to at least one state ballot.

• Richard Duncan, of Ohio; Vice-presidential nominee: Ricky Johnson

• Michael Vargo, of Ohio; Vice-presidential nominee: Jeff Angeletti

• Jeff Boss, of New Jersey; Vice-presidential nominee: Bob Pasternak

• Jill Reed, of Wyoming; Vice-presidential nominee: Tom Cary

• Sheila Tittle, of Texas; Vice-presidential nominee: Matthew Turner

• Jerry Litzel, of Iowa; Vice-presidential nominee: Jim Litzel

• Randall Terry, of West Virginia; Vice-presidential nominee: Missy Smith

And of course

Mitt Romney, and Barack Obama

Just seems like there are more than two, huh? Discuss.