This is no longer available! But I did some digging, for only $17 you can get a program that submits to 2,700 directories. Get it here. (more info)
I just learned of today a free tool for directory submission. This tool allows you to create website profiles which store the information about your website(s). They include a list of common directories, and the tool allows you to browse them, and automatically submit your site link. This will save enormous amounts of time for webmasters, no longer do we have to hunt down new directories, and copy and paste the same info into each one.
Normally tools like this cost well over $100, but this one's entirely free, which is extremely cool. Here's the link to the automatic directory submission tool.
I've been using this tool for a little while now, and it seems to be working very well, very easy to use and understand, no bugs.