In a letter sent to newspapers, the kidnappers said they were seeking less than $30 million.
Students sent statements to newspapers and traveled to hearings in Washington.
Several ransom notes and claims of responsibility have been sent to newspapers.
"The traditional approach had been to rely on news releases sent to local newspapers," she explained.
Copies of the book have been sent to magazines and newspapers.
The call for action containing the names of 89 supporters was sent to major newspapers, with Stone's name at the top.
After his death, police found a number of writings and letters earlier sent to newspapers were uncovered.
These letters were often sent to newspapers, to help provoke debate.
Copies of the letter, signed by the group's political committee, were sent to newspapers.
Support was rallied in Congress and fact sheets were sent to major newspapers.