I'd rather go with connecting and interacting with social media sites like Facebook, Linkedin and Twitter. Interact with people with the same interest. If they like your article or your site, they will surely share your content to their own website or social media sites, by this way, you are surely going to get a back link to them without any hassles, but the thing is, you need to be patient, since this doesn't work in an instant. I goes step by step.