Original sentence: , refers to a perceived second generation of web-based communities and hosted services — such as social-networking sites, wikis and folksonomies — which facilitate collaboration and sharing between users.Web 2.0, a phrase coined by O'Reilly Media in 2003.and popularized by the first Web 2.0 conference in 2004
Edited sentence: Web 2.0 is a phrase which, while coined earlier, was popularized by the first Web 2.0 conference in 2004.Web 2.0 refers to a perceived second generation of web-based communities and hosted services — such as social-networking sites, wikis and folksonomies — which facilitate collaboration and sharing between users