I have written for Wikinut since 2012, I use their website as sort of resume. When I apply for ghost writing (freelance) work I refer my clients to the articles on Wikinut. It has worked out great for me! I have gotten many great clients who gave me good writing jobs. They may not pay but the work I got paid very well. Where else can you display your work as reference. After all as a ghost writer I cannot reveal my true clients.