Local English-language papers often hire native speakers as copy editors. This is a great way to support yourself while freelancing. These jobs also help you get to know local reporters, who can help you with everything from contacts, to finding translators, to understanding the context of current events.
The Voice of America hires stringers for radio, TV and web news. Contact the nearest bureau.
Stay in town during major holidays when everyone else takes vacation. You can pick up strings for other people, which often, eventually, leads to steady work.
Work all your contacts. Start before you leave the country. Talk to every potential media client you can find and try to get them to commit to taking stories. Get back in touch soon after you arrive.
International Media Job Lists
Idealist.org (NGO jobs): http://www.idealist.org/
Dave’s ESL Cafe has an international job board and other great resources.