Asking about how to find tons of clients.

Hello DPers

I am a writer with no less than 7 years of experience. Writing is my hobby and, until now, my main income comes from writing. Almost all of my clients come from this forum and several independent sites. Well, what I want to ask is "can I get clients out of this forum and other similar forums? Can I search for clients by contacting website owners directly?

Thanks for your answer