I saw quite a few hosting registrar (ex:namecheap,enom) offering this service call rich content. The highlight: "RichContent library has more than 4 million rights-cleared articles and videos covering 300 categories including autos, business, entertainment, finance, food, health, sports, and travel. Over 3,000 fresh articles and videos are added each day." It sound like private article farm and promising. Have anyone give this a try?