A simple way to get more Facebook fans to like your page is to add a signature at the bottom of your email that includes a link to your Facebook fan page. Instead of just saying something generic like ‘Connect on Facebook’ or ‘Become a fan on Facebook,’ include the link and add a benefit of becoming a fan of the page.
Some examples could be:
‘Become a fan of our Facebook page to receive exclusive, Facebook only coupons and discounts’ (any retail/service business)
‘Connect with us on Facebook for healthy skin care tips’ (spa)
‘Join us on Facebook to exchange marketing ideas and tips (small business marketing consultant)