Apple dominates the list of top 10 social media brands — without a blog or a strong Twitter presence

You hear it often: Start a blog, join Twitter, launch a Facebook page. You’re shown examples of successful companies doing this. And then there’s Apple, which for the second-straight year saw its iPhone take first place on Vitrue’s list of the top social media brands . iTunes ranked sixth and Apple hit No. 8 on the list. (Disney, CNN, MTV and the NBA rounded out the top five.) Yet, Apple doesn’t have a blog or an official Twitter feed. So how does the company do it? “First, …