Hi... another way to improve search engine visibility, ranking and Domain Authority (DA) on your site is using Infographic. By submitting your infographic to Infographic Directories you'll create link baits and have a chance to go viral by attracting people to pass on your infographic on many sites, of course if your infographic worth to share . If this too much for you, you can hire someone expert on fiverr or odesk to make infographic for you, just search 'infographic' in the search box and you're good to go. You can also share your infographic by guest blogging, contact the webmaster then ask if they can publish your infographic in their blog. Once you’ve created an infographic masterpiece, be sure to also sharing it in social media to get the ball rolling. Share it with the right people that will find it useful and pass it along to their contacts. Below is some Infographic Directories along with their pagerank and Domain Authority (DA). Hope this useful for you