Hi,
I want to add some from my side,
URL:- dndirectory.net
Requirements :- No illegal sites
Cost :- free

URL:-onemission.com
Requirements :- General sites
Cost :- free

URL:- fat64.net
Requirements :- No illegal sites
Cost :- free

URL:- free-backlink.com
Requirements :- General sites
Cost :- free

URL:- linksubmission.info
Requirements :- General sites
Cost :- free

I hope this will be helpful for others.