I am a B2B platform from China, that is tradehong.com.
We build up this website 2 years before, and now we have some orders from USA or somewhere else. And most of our customers are friends on our facebook account.
Now, I would like to share my experience about using facebook to promote products with you.
1: Create a useful manage page for viewers and friends.
2: Make friends with your potential customers and make a conversation with them.
3: Create a facebook groups and set different topic with your friends.
4: Decide to choose a paid advertise or free advertise to promote.
5: Promote your facebook manage account on others blogs
Facebook is a social network, and join in it, you can make friends with people around the world. Maybe somewhere can not log on the facebook just because the religion.
At the same time you can blog on you facebook account and release your products information and pictures and video and all you can do.
This is all I can share with you, and I will go on my blog after I have new progress.