Just sharing a little success I have had using Facebook pages combined with free adsense sites; this has been done with 0 invested so far.
I finally hit that $100 day milestone yesterday after I managed to acuire $110 in 1 day to my adsense using solely Facebook traffic. I am around 1 month into my Facebook venture.
I am using Facebook pages and have managed to build a page to 25,000 likes which allows me to drive traffic to a free sites with some content and Adsense.
On average at the moment I am only getting around $60-$70 but it is slowly increasing as I get more page likes. I also have recently acquired a new page with many more likes, so will hopefully benefit my earnings greatly.
Not a great amount of money and I am sure I could be utlizing the traffic far better but I am happy!
Any questions regarding this just let me know, am happy to help