Portale Giovani is part of the Comune di Firenze initiative for teens in Florence.
You can find events for teens and young adults (university students), discussion forum, volunteer work, and so much more.
You can even get a card for discounts at many places.
Carta Giò has been designed for all Florentines who are aged between 14 and 35 years, while Carta Giò studenti is a card designed especially for all , including foreigners, who are studying in Florence.
You can find out more here: P O R T A L E G I O V A N I – Comune di Firenze.