This is not correct.
According to O'Reilly Media 'Web 2.0' refers to "a supposed second generation of Internet-based services—such as social networking sites, wiki's, communication tools, and folksonomies—that emphasize online collaboration and sharing among users".
According to O'Reilly Media 'Web 2.0' refers to "a supposed second generation of Internet-based services—such as social networking sites, wiki's, communication tools, and folksonomies—that emphasize online collaboration and sharing among users"According to O'Reilly Media 'Web 2.0' refers to "a supposed second generation of Internet-based services—such as social networking sites, wiki's, communication tools, and folksonomies—that emphasize online collaboration and sharing among users"

Correct!
According to O'Reilly Media 'Web 2.0' refers to "a supposed second generation of Internet-based services—such as social networking sites, wiki's, communication tools, and folksonomies—that emphasize online collaboration and sharing among users".

This is not correct.
According to O'Reilly Media 'Web 2.0' refers to "a supposed second generation of Internet-based services—such as social networking sites, wiki's, communication tools, and folksonomies—that emphasize online collaboration and sharing among users".