Copywriting Job: 4 articles

I need articles written up to be submitted into article directories. The articles are to be promoting links in which i will disclose at a later time. i need 4 articles in total, one without the link embedded in the article. The other three are to have the link within the articles. I would like to see a portfolio of work before hand if that is possible, that would be terrific and if that's not possible just a brief article would suffice. Thank you, Harrison