They may work for governments, advertising agencies, large corporations, private consulting firms, magazines, journals, newspapers, and other publishers, radio and television networks/stations, social agencies, multimedia/new media companies, and private translation/interpreting agencies, international, cultural, and other organizations. They may also be self-employed.
Here are the average annual salaries.
2010: $57,762
2005: $53,851
2000: $39,760
1995: $37,040