Youthology, the digital marketing arm of Gorilla Nation which is focused on youth, said Friday that it has acquired TeenSpot.com, an online website focused on teenagers. Financial terms of the acquisition were not disclosed. TeenSpot's entertainment and community website is a moderated, social networking and chat site, focused exclusively on teenagers. The site includes message boards about movies, fashion, celebrities, music, and more. Gorilla Nation said its Youthology arm will provide marketers with integrated marketing programs, including mobile, video, social media and rich display products, on the newly acquired site.