Submitting to article directories is a great way to generate traffic. Others can use your articles on their related sites as long as they use your bio at the end, which means more visibility for you. Here are three other article directories you can submit to:
Submit Articles & Ezines - Free Article Submission & Article Directory
Article Search Engine Directory: GoArticles.com
ArticlesOn.com, Free Content, Free Articles, Free Article Database & Free Article Submission.
I have heard it's usually best to go with the ones with higher PR ranking.