More Article Directories To Bring Traffic, Because Traffic is Money

Here is a site that has a huge list of article directories, and it shows their pagerank right beside them. I recommend submitting each article you write to all of the articles with pagerank 5 and higher. A tactic I use is to focus on submitting a single article to as many worthwhile places as possible. If you submit 10 articles to 10 places (pagerank 5 or higher I'd say), and each submission brings you 10 blog visits a week. Well thats 4000 hits a month. Manage to convert even 1% of that at 10$ a piece (for example) and you just got 400$ from 10 articles. Also for a less conservative example lets do 10 articles, 10 submissions, 40 blog views a week from each. That totals at 16000 a month. Convert 2% of those at 10$ a piece and that is 3200$ a month.
ArticleTrader

Here is another list of article directories that is also good.
Best Article Directories

[Update!] Only a couple days after this post Google released their own article directory called "Google Knols". Odds are very high that this directory will quickly exceed all others because Google will make sure of that. Now is the chance to take advantage of it as soon as possible, because if you didn't already know, the first people who got in on EzineArticles when it came out were hugely successful. You can find it here. Trust me, Google Knols is soon to be the most successful directory in existance, it is growing exponentially as we speak. I have already put 25 of my articles there. The best thing about Google Knols is that since it is FROM Google the articles there will rank higher in Google on average than the other directories, meaning way more search engine traffic to your articles. And as you probably know search engine traffic is where the big money is at.