How To Do Article Directory Submissions

Article submitting should be a major project in your internet marketing process. Since most marketers that make the big money have hundreds of site, it takes a lot of promotion to support these sites. Article marketing reduces the costs. To promote 100 sites with 10 articles each that would be 1000 submissions. Even with software that is semi-automatic, it takes one hour to submit 40 article or 45. At 45 per hour, it would take 22 hours or around 3 days. Would it be better to have a service do your article directory submissions?