Jetsubmitter is currently offering a 30 days free trial. It claims that, by using it, "What You're Getting: •Submission to 473+ Article Directories •Article Spinning software •Automatic Account Creation at Directories •Unique Article Variation Submission •Post Scheduling and Perday limiting •MASSIVE Results From your Efforts" What is the success rate of posting to 473 article directories?
I didn't care for Jebsubmitter that much- not very much control over what directories it goes to. I like SENuke for psuedo-manual submissions or Distribute Your Articles for iSnare like article blasts without spinning.
So far so good. It is cheap at $29.99/month. Their interface needs a little polish, but it is a very easy system to use and my articles have gotten decent distribution. A phrase match search of my titles has produced about 950-1150 results - not bad! I wish there was better reporting, you just get a number of article directories that it was submitted to, not which ones.
What kind of backlink results are you getting from those articles? How many pointing back to your website? Also, were you a user of Article Marketer, before you went to Distribute Your Articles?