Heres a little FREE something for you mainstream guys
 

These are free services I have only tried them with mainstream and not adult

http://www.easysubmits.com Semi automated directory submission

http://www.linkmarket.com Similar to thunderball has both free and paid link exchange sections

http://www.mmli.org/freesearchenginesubmission/ Free search engine and directory submitter

The first site has about 48 pages of directorys once you submit your url it also lets you check your submission to see whether its aproved or not


have fun

Thanks for sharing. Can be useful.