You are ready to start using or are currently using articles as a link building and marketing tactic. I thought you might need some resources.
Below are some article sites I have used in the past. These are top quality article sites in which I have seen results.
Ezine Articles – http://ezinearticles.com/ – This is one of the best websites so far. I have received quite a bit of traffic for this site and great exposure.
WebProNews – http://www.webpronews.com/ – technology and web development topics
Go Articles – http://www.goarticles.com/
ArticleAlley – www.articlealley.com/
Article Dasboard – http://www.articledashboard.com/ – I have received a good amount of traffic from this site.