More than 2 billion people use Facebook daily, which makes is a no brainer as far as an advertising platform is concerned. Not only that, they collect so much data for its users that they share with advertisers to help them target their audience in even the most granular ways.
But you can't just throw up any ad on Facebook and expect the business to roll in, it takes a little finesse and testing to reach the right target audience that's going to reward you with leads and sales. You need to choose the right objective for your campaign, as well as choose the ad set level, before you even go ahead and create that perfect ad.
http://www.theagentsofchange.com/214
The Agents of Change Digital Marketing Podcast