Combine Social Media with E-mail marketing - Here a few tips on how to promote social media in your e-mails. It is one more way to engage and involve your customers.
1. Add social networking logos to the header or footer of your e-mail template. A share icon would do.
2. Send solo e-mails promoting your presence on social media sites. You can also offer coupons for those who like your page or create unique promotions.
3. Capture data.
Sources : http://www.buzzbooster.com/marketing-blog/2011/08/14/combine-social-media-with-e-mail-marketing/