Web 2.0 is the recognition of a "new" Internet, not in any technical sense, but in a way that is allowing people to interact through social-networking sites, podcasts, wikis, blogs, video feeds and the like. The implications that new and faster "connect-ability" offers is astounding: people can find old friends, apply for jobs, place ads, send entire files or portfolios, and even find a soulmate.
Once the web became known for its effectiveness, it molded the way software developers and web masters developed web pages. No longer are our audiences bound by geographic barriers; Web 2.0 allows interconnectivity on a global scale. Anyone with access can have their own web page, introducing them to the rest of the world. Businesses that take advantage of the benefits that this "new" Internet can offer are able to operate on an elevated level. Those that are currently part of the workforce must keep their business agile and flexible to adapt to the changing face of day to day operations, while those entering the workforce must anticipate the wide use of Web 2.0 applications in today's global community.
This is what Professor Wesch meant by "We need to rethink everything." We must all consider the expanding of the web and its correlation with each and every aspect of our daily lives.