Lot of people use softwares for marketing. Bookmarking submission software, social site submission software, blog commenting,.........list goes one.
Some people dont like to use software though, they argue manual process is the best process. Some of them even think its not ethical to use software for marketing e.g. SEO etc. They think its ruining the process of natual recognition of a website's authority.
Who wins? Thats a question to validate really
Whats your opinion; using sotware for marketing is ethical or unethical