The Internet has changed our world, and certainly created more demand for writers. Now almost every company has an Internet site, along with their real world activities, and all these Internet sites need decent writing. Not only do they need writing for the site itself, they also need someone who can write optimized press releases for them that will help their web sites with search engine placement. Even companies whose web sites sit at the top of Google and Yahoo need to write optimized press releases, just so people know the news about their business and stay interested in what they do.
You can search examples of press releases by using "press releases" as your search term, and see what comes up at the top. There are some really terrific press release writers out there, and once in a while you see advertisements for people to write press releases for companies. Writing press releases for companies in your areas of expertise can bring in a little extra money, if you enjoy writing and are good at it.