What do President Obama, the Dalai Lama and Justin Bieber have in common? Why, they're all on Twitter, of course. Join the party. Whether you're new to Twitter's popular microblogging application or just missed a few of the essentials along the way, you're sure to benefit from this free video tutorial, which presents detailed, step-by-step instructions on how to follow an account on Twitter.
Have an iPhone? See everything that's new with Apple's latest iOS update: