As a photographer you've got to work to build relationships. You've got to be a people person and focus on your integrity, trust, keeping your promises and exceeding client expectations.
At least four years ago, my buddy Byran Caporicci sent me a copy of UnMarketing by Scott Stratten. It's an outstanding book and one I'd suggest you order now. His sub-title says it all, "Stop Marketing. Start Engaging." And in the new edition, co-authored with Alison Kramer the subtitle is, "Everything has changed and nothing is different."
That means you've got to be involved in your community. You need to build your blog on a foundation of helpful content for your readers. Answer every phone call and return calls as quickly as possible. Build a reputation on a foundation of responsiveness and being helpful.
You are your brand and nothing will help you build your business faster than establishing strong relationships with members of your target audience. Social media has given us all a level of extended reach that years ago only magazines had. Today, keeping in touch with past clients is all at your fingertips and Scott Stratten had another outstanding quote right in his introduction: