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?
They have probably been spammed to death, that's the only problem with this kind of stuff. Might be worth it to get ideas for new articles though.
See what it says in the FAQ's Is RichContent SEO-friendly? RichContent is a JavaScript widget that is ignored by search engines; it will neither help nor harm your search engine rankings. All but useless for seo purposes, might be good for keeping readers on a blog though if it is interesting reading.