Articles submission directories

http://www.isnare.com - Send Your Articles to Hundreds of Sites With Just One Click of a Button! - all subjects

http://www.articlecity.com - all subjects 

http://www.webpronews.com/submit.html - submit articles related to eBusiness, search engines, information technology, or web development.

http://www.allmerchants.com/submit-article.php - ecommerce related