I have a chiropractor who wants me to rank them for Chiropractors __(my city)__. This is my first client, and I don't feel confident spamming his company's URL on profile pages. So far I've only used profile backlinks for SEO to promote my own stuff. Now that I have a client, which SEO methods are the most appropriate? I looked into article marketing, but its effectiveness is questionable. Although its a lot more professional than profile backlinking for sure. thoughts?