Your online posts via your business Facebook page now only reach a small percentage of your fans unless you fork over some money to reach everyone interested in your brand. Businesses have worked hard over the years to gain fans and now they have to pay to reach them.
There is an outcry about the paid posts and how successful they are. Many test seem to show that spam is rampant. As with all things I strongly recommend you test a paid post ($5-$7ish dollars) to see what kind of results you get.