New media is basically any type of media that has the ability to be interactive.
It’s a term that’s been thrown around since the 70’s, but has more recently been used to describe various types of (usually digital) interactive media, such as the Internet, websites, email, apps, video games, CD-ROM’s, DVD’s, etc. It tends to be based largely online where data communication is happening. Chances are, if it’s not considered a form of traditional media (actual physical paper-based books, magazines, newspapers, even T.V.), then it’s probably new media.