Promote Your Facebook Page On Your Other Social Networks.
Link to your website or blog in the “About” box on your Facebook Page.
Tell Your Email List About It.
Post Multiple Times Per Day.
Use Facebook Advertising.
Use video to get more exposure for your blog.
Add a landing page to one of your thumbnails.
Facebook is not for link-building purpose. Utilize it for promotion of your website/company/services/products among Facebook users by creating a Facebook page, create unique posts and also run paid campaigns for this purpose.