RonPK - 12:34 pm on Mar 1, 2012 (gmt 0)
From my website I post a "picture of the day" to Twitter, with a link back to the site. Simple but effective: the postings get RT's and actually drive traffic to the site.
But the best is that the account attracts followers interested in the site's subject. They talk with me, I talk with them. That isn't just fun but also helps me to improve the site.