It is common question, everyone ask on internet.
so you will have to follow these steps
1- Open following Link
2- Choose appropriate Categrioy of your Site...like is it a music site, poetry site and anyother
3- Click on top of the site "Suggest URL"
4- Fill the form and they will manually chek ur site contents and then submit your site within 5 or 6 days....and confirm you from email.
plz comments if you found this information valueable..............its not a copied data....