Quality directory submission benefits and effects
 

Directory submissions are most important role playing in search engine optimization for a website to gain backlinks through the search engine optimization process. Directory submission means putting your website to an online directory. It is must for your website to get one way back links, if your website has to do well in search engine results. You should submit your website to maximum online directories that may create large number of traffic to your website.

Benefits of Directory Listing:

• Extra targeted traffic
• One-way links to your Website
• Quality back links
• High Google Page Rank
• Improved search results
• High visibility in search engines
• More accessibility to website

Re:
 

I have also doing directory submission.Till date I have not get approval from Dmoz.org.Can anybody know what is the reason behind that?

Very true post. Just make sure they are HIGH PR directories and that they Manually review each site. Otherwise you might get penalized.