Most people think of Instagram as a photo-sharing app with cool filters, but tweens turn to it as a social network since they’re not legally allowed on Facebook.

Most people think of Instagram as a photo-sharing app with cool filters, but tweens turn to it as a social network since they’re not legally allowed on Facebook. They can post photos on Instagram, comment on others’ pictures, and update statuses, and many parents allowed them to download the app not realizing they would use it in this way. (CNET)