Does Facebook work for your business?

Hi! I read an article about marketing your talent. They stressed the importance of having a blog. The article said that you could have 100k followers on Facebook and if you don't pay to push it out to your followers, you may get only 1% of your fans seeing it. It said if you spent $59 to promote it, you might get 25% of them to see it.  

I use Facebook a lot and it has helped get my name out there but I see what they're saying. I promote a lot on there and it's hit or miss.  

I decided to start my blog again and post to Facebook through here.  

Anyone have any thoughts on this? Valid or not? Feel free to leave a comment or drop me an email.  

Thank you!