Make your articles orginal. I don't think it helps much having 1000's of the same article. I would vary them a little. I don't have any conclusive data to support that, but it's just common sense to have a more natural looking links comming in.
Personaly, I'm making a program that mutates my articles slightly with a thesaurus database. Maybe that helps a little.
Post your article on my site
www.Exchange-Articles.com It's Free, but you do have to register. It's crawled and liked by Search Engines.
Good luck.