Declare bankruptcy. Unfortunately, this alone will not erase your student loan debt. After the court has granted you bankruptcy relief, you must then prove to the court that you cannot "maintain a minimal standard of living" if you are forced to repay your student loans. Additionally, you must have already made a good faith effort to repay your loans--this usually means that you have made payments for at least five years before declaring bankrupty.
Become a teacher. People who become teachers in low-income rural and urban neighborhoods may be forgiven their loan debts. Go to the Department of Education for more details.
Become a volunteer. The AmeriCorps, Peace Corps and VISTA programs give volunteers a stipend at the end of service that is specifically meant to pay off student loans. Additionally, your student loans may deferred during your time volunteering.
Join the Army. The Army provides up to $65,000 to students to repay their loans. Also, since the U.S. is currently in several war zones, the Army is offering hefty signing bonuses.
Work in the health care field. The government has several programs for nurses and doctors who agree to work in areas where health care is lacking. These programs include the U.S. National Institutes of Health's NIH Loan Repayment Programs, the Nicholas J. Pisacano MD Memorial Foundation, the American Academy of Family Physicians Foundation, the Disadvantaged Health Professions Faculty Loan Repayment Program and the Indian Health Service (IHS) Loan Repayment Program.
Become a lawyer. The American Bar Association has information on student debt forgiveness programs for people who went to law school. This generally involves working in public social services to get the money to repay your loans.