Amy Bizzarri's blog TiramisùMom:
Keep your website fresh: With all the pressure about posting in social media, keep in mind that ultimately you need to direct visitors to a core website where they can learn all about your business — and make purchases. Create a web presence that reflects your business and your company culture. Make it accessible and engaging.
Include instructional videos: Build a library of YouTube uploads that pertain to your business and demonstrate your products. Link to these videos from your website and add a YouTube app to post them on your Facebook business page.
Friend and tag other businesses on Facebook: It's easy to tag friends on your Facebook personal page and fans on your business page, but you can also tag other business pages as well. Be social — and help spread the word — by including other businesses in your posts.
Make social media fun: Keep the social conversation going. Post more often on a couple of sites instead of posting rarely on many. Aside from posting relevant content regularly (and not self-promoting all the time), reply to those who post to your accounts. Answer and ask. The most desirable social media personas are those who interact regularly.