Do you know the Webmaster community always prefers manual directory submission than auto submitting? More over it is highly advantageous. Directories expect all details of your site for effective inclusion.
For getting good rankings in the search engines and to receive a bunch of one-way links most of the Webmasters submit their site to web directories. Some of the directories considered the automated submission as a SPAM. Hence it is highly advisable to opt the manual directory submission.
You may come across-