Where is the best place to advert for leads?

[merm]

hello im looking for the best place to advertise for email and zip code submit leads im going through a company and i would just like info on the best place to advert them that would be good and cheap

[Ad disengaged]

dont bother jmho

[merm]

well i make alot now from them about 600 a day i just would like to inprove.