For more information on my coaching and mentoring programs for emerging commercial photographers, hit my site at: http://www.dongiannatti.com
These are my takes on social media marketing for photographers. You may notice a few missing social media channels. That is because I have found very little research that would indicate Twitter, Pinterest, 500PX and such to be of value to commercial and editorial photographers.
And yes, I still think it is a good idea to have a blog (journal) on your site. It is a great place to feature recent work and tearsheets.