Facebook is one of the reliable source of generating traffic.
Though you will need to have lot's of friends and create a fan page relating to your website niche.
I can give much details here because I can post a link yet. but i how to do in the future.
i will give you the full details on how to generate traffic non-stop with only a 7-day work.
social media optimization played a vital role in internet marketing..now more traffic are avilable on social networking site..so facebook posting is more effective..