Facebook is a tool that changes constantly but one that, if used correctly, can be leveraged to achieve great success and revenue. It gives you the ability to start with a low budget and build from there.

That being said, the time, effort and money (plus opportunity cost) you spend trying to figure it out will grow.

One of the resources I found to be the most valuable one if you have the time to learn and test things out was through Amy Porterfield (amyporterfield.com). Even her podcast and blog is amazing and her Facebook and Link Building courses are worth every cent.