When you type in a President's name, Google Instant will pop up with the most common suggestion of what should come next. Here are those results, at least in Boston, MA. I think it says a lot about human nature.
"facts", 17: James Monroe, Martin van Buren, William Henry Harrison, James Polk, Zachary Taylor, Rutherford B Hayes, James Garfield, Chester Arthur, Grover Cleveland, Benjamin Harrison, William McKinley, William Howard Taft, Warren G. Harding, Herbert Hoover, Lyndon B Johnson, Gerald Ford, George HW Bush
"quotes", 7: Thomas Jefferson, Theodore Roosevelt, Calvin Coolidge, Harry Truman, Dwight Eisenhower, Ronald Reagan, George W Bush
"biography", 3: Ulysses S Grant, Franklin Delano Roosevelt, Barrack Obama
"university", 3: George Washington, James Madison, Franklin Pierce
"impeachment", 2: Andrew Johnson, Bill Clinton
"house", 2: John Adams, John Quincy Adams
"gay", 2: James Buchanan, Richard Nixon
"suburban": Millard Fillmore
"school": Woodrow Wilson
"library": John F Kennedy
"grandsons": John Tyler
"rabbit": Jimmy Carter
"jihad": Andrew Jackson
"vampire hunter": Abraham Lincoln
"facts", 17: James Monroe, Martin van Buren, William Henry Harrison, James Polk, Zachary Taylor, Rutherford B Hayes, James Garfield, Chester Arthur, Grover Cleveland, Benjamin Harrison, William McKinley, William Howard Taft, Warren G. Harding, Herbert Hoover, Lyndon B Johnson, Gerald Ford, George HW Bush
"quotes", 7: Thomas Jefferson, Theodore Roosevelt, Calvin Coolidge, Harry Truman, Dwight Eisenhower, Ronald Reagan, George W Bush
"biography", 3: Ulysses S Grant, Franklin Delano Roosevelt, Barrack Obama
"university", 3: George Washington, James Madison, Franklin Pierce
"impeachment", 2: Andrew Johnson, Bill Clinton
"house", 2: John Adams, John Quincy Adams
"gay", 2: James Buchanan, Richard Nixon
"suburban": Millard Fillmore
"school": Woodrow Wilson
"library": John F Kennedy
"grandsons": John Tyler
"rabbit": Jimmy Carter
"jihad": Andrew Jackson
"vampire hunter": Abraham Lincoln