While you’re doing that networking, check out the Jobs section and sign up for email alerts when jobs are posted that match your interests. Many will be location-based, but who’s to say you can’t approach these employers with a proposal for freelance writing services? Maybe they need someone to fill the gap in the hiring interim, or maybe the job could just as easily be done remotely but they hadn’t considered that.
These little jobs are done by people who log on to a company’s site and choose tasks, which could be as simple as clicking a link. Amazon's Mechanical Turk is one of the most well-known sites of this type. Also, there are crowdsourcing projects, which are similar to data entry, where companies engage an army of virtual workers to each do one small part of a larger project.