Social media allows you to “crowd source” your link building.

When you have a following on Twitter or Facebook or LinkedIn, you create a team of fans who can share your content. That’s what social media is all about, folks — being social! (Imagine that.) So when you write a new blog post on your business blog, you can take that content and share it on Twitter and then get some of your followers to share your content. You can also get your website visitors to share pages of your site and your blog on social media by adding simple social buttons to allow people to quickly and easily “vote” for your content right there on your website. Sure, many of these people will never become your actual customers, but that’s not your objective here. Your objective is to build buzz and attention around your website.