Look on Craigslist first.
You might find some 'jobs' as a writer on those two sites.
Be prepared to find more 'freelance', pay per piece, work though. If you do find a 'job,' it might be only part time, 5-15 hours per week.
So you'll want to consider getting 'clients' instead of, or to supplement, any job you might get.
For finding clients, go trawl the Internet Marketing forums. Webmasters are always in need of content.
You can also find work on constant content, and even submit work with the price you want for it, and just 'sell' it.
Hope that gives you a start.
P.S. Beware Demand Studios.