Free Directories for SEO

I’m thinking of sending all of my client’s web sites to free directories. We want to test how much traffic we can get without spending any money. I found this site called Free Directory Submission (clicke here) that lets you submit your urls to selected and reputable SEO friendly directories for free. The process is automated so you only need to submit once. This is a great tool because my client has about twenty sites and eight more that are currently in progress. This way, I don’t have to enter the information over and over again. As a thank you, all you have to do is link back to their site which is considered fair trade. I just need to ask my client if he’s willing to add a link and then we’ll be all set.