classified blaster

Hi This is my second project posted today I am looking for some software that will send out a website url to safe classified sites only There is danger in trying to obtain back linking via classified sites as many are blacklisted and can cause severe damage to SEO employed I am looking for a script that will send out a domain or url to Alexa top ranked companies - or a script that will create safe backlinks for client sites. I am open to advice and suggestions Thanks