3 Market Research Tools on Facebook

Facebook is a great social network to utilize for market research, but just how exactly do get behind the facebook wall since all of this information isn't publicized anywhere? I came across this post on About Results Marketing in which they list three market research tools available on the facebook platform. Here they are:
Facebook Lexicon
This service analyzes the amount of times a keyword has been mentioned on Facebook. It's a great way to see if there is any buzz on a particular subject matter.
Facebook Pages
This is a great tool to get people to join a group around your business. The cool thing here is that once more than 10 people join the group, you'll start getting 'facebook insights' which is demographic details about people on your site.
Taking Demographic Data from Facebook Ads
This involves setting up an ad campaign on facebook, and by doing this you will be able to see how many people there are in a specific demographic that are interested in a subject matter. The post gives an example that you can search for how many 18-24 year olds have SEO or SEM in their profiles.
Take advantage of Facebook for your company's market research methodologies!