english: A Web 2.0 site allows users to interact and collaborate with each other in a social media dialogue as creators (prosumers) of user-generated content in a virtual community, in contrast to websites where users (consumers) are limited to the passive viewing of content that was created for them.
non_english: Si tende a indicare come Web 2.0 l'insieme di tutte quelle applicazioni online che permettono uno spiccato livello di interazione tra il sito e l'utente (blog, forum, chat, wiki, flickr, youtube, facebook, myspace, twitter, google+, linkedin, wordpress, foursquare, ecc.).