As I already mentioned above, it doesn’t matter how small or big your company is; you need to take care of your SEO. Remember that 89 percent of consumers use search engines to help make their purchasing decisions. To get people to buy from your company, you need to make your site visible at some point in the buyer's journey, which means you need to definitely be visible on the search results pages.
Facebook ads are a great way to get highly targeted traffic to your blog (landing page, fan page, what ever). Although not a free traffic source, it is a great one. The price is not very high and I think it is pretty acceptable considering that you can choose demographics of Facebook users that will see your ad. I had great success getting traffic that converts on one of my niche sites.