If you are the parent of a pre-teen or older, you've stepped into the intersection of adolescence and social media. Melanie Barwick says when she was a teen, she was lucky to have permission to use the phone. Alone time often depended on the number of siblings you had and the space available where you could be on your own. Being a teenager now means you likely have a cellphone, an email account, and a presence on Facebook - at a minimum. Welcome to the land of the digital native - adolescent version.