WWW , also referred as Web 1.0 is the traditional World Wide Web and Web 2.0 is the current state of online technologies.
The biggest difference between Web 2.0 and Web 1.0 is the greater collaboration among Internet users, content providers and enterprises (websites that enable community-based input, interaction, content-sharing and collaboration). At Web 1.0 data was posted on Web sites, and users simply viewed or downloaded the content. Web 2.0 offers more dynamic Web that is more organized and is based on serving Web applications to users.