I think it really depends on what you are marketing. Different businesses will get different results. I've tried both and I personally get better results from Google, but that's not to say Facebook wouldn't give you a fair amount of business as well. I'd suggest considering several free sites to boost your business such as LinkedIn, Merchant Circle, Facebook page and possibly Craiglist. Where people tend to fail in my opinion is not being open to many options. Test those options and if it doesn't produce what you want then stop it. Also something to consider is what works today may not work next year so I'd suggest testing those same markets every year or two. Learn your conversion rates if possible. I can tell you what every lead cost me in my business. I can also tell you for every dollar I spend how much I can probably make. It will do you now good if you are just randomly taking business and don't ask the customer how did they hear about you and keeping track of every call. I've been in business 25 years this coming April and I have opted to not pay for advertising like I have in the past. I have made niche websites with key words in each website that attract literally 90% of my business. My approach was to start out with 5 websites and now it's literally up to around 30 that produce most my leads. Again, that may not work for you. Just be proactive and find every available free marketing spot as well as paid and start trying them all. You can always call me if you have any additional questions. Good Luck!