How to Get Traffic from Facebook Pages and Groups ?

How do you find facebook groups? When I search it gives very poor results. Do I use a program to do this?

Creat page and promote your link in comment of other page

So do I create a secondary page for my product?

Here are few tips to get traffic from Facebook Fanpage and groups
Facebook posts that include images get a round 120% more engagement than posts with no photos.
Make your Updates Short
Use a Short Quote From Your BlogThere's no need to keep the link in the text of your post
Share Lifestyle or How-To Blog Articles
Generate traffic to your blog by publishing interactive content, like contests. Then promote your contest by posting it on your Facebook Page.