When you get your articles outsource do you do the submission of those articles manually or do you get someone else to submit it to ezine? Is it better just to have someone do the writing and then you manually submit it to ezine since then you can check your stats when you login into ezine. I was always afraid of if the person submits my own ezine article on their account that they can manipulate it once i push that article to the top of search engines. Then they can just take my traffic. Right?
Exactly, this is the reason why I submit the articles myself. I use Article Post Robot in manual mode so I don't need to copy and paste the articles in every article directory but only check out the category and submit the article. You can also use roboform. With custom fields it works quite well. If you submit to the article directories powered by the same script (e. g. article dashboard directories) it will work perfect because all the fields in the submission form have the same name so Roboform will fill in them correctly.
Submitting articles in good directories are useful. Bcz many of them are not approved our submitted articles for a long time. Before going to submit a article, analyze and collect the good article directories are important. Please check this knol about Article Marketing http://knol.google.com/k/guna-nadar/article-marketing-a-case-study/18pn58gwhohkh/18
I also like to submit article manually. and i think that once your article is submitted to SE then duplicate article will valueless. it will not effect your traffic.
I submit to all article directories I know. More directories = more readers and more backlinks. If you have time to submit your articles only to a few article directories I recommend to find some of the many lists and submit to those with high pagerank and alexa rank.