Daniel,
I highly advise against any such method of link building. The proper link building technique is to earn links. If the links are given away free to anyone, you did not earn them. Google often views free directory links as manipulative and "inorganic".
You need to closely examine each directory. Is it a quality directory? Can anyone get in or are there authentic standards which cause a percentage of websites to be rejected? Does the directory comply with Google's Guidelines?
I have worked with multiple clients who have been penalized as a direct result of similar links to what you are describing. The result is the clients had to contact each linking site and request the links be removed. This process is very time consuming and expensive. It costs many times more to remove the links then to get them in the first place. Once again, I strongly advise against ever using any directory submission site. Even if you do not earn a penalty, the links simply offer no value.