The term Web 2.0 refers to a second generation of services available on the World Wide Web that lets people collaborate and share information online. In contrast to the first generation, Web 2.0 gives users an experience closer to desktop applications than the traditional static Web pages. They often allow for mass publishing (web-based social software). The concept may include blogs and wikis.
Below you can see a good comparision between web 1.0 and web 2.0 written by Tim O’ Reilly:

Web 1.0 –> Web 2.0
Ofoto –> Flickr
mp3.com –> Napster
personal websites –> blogging
evite –> upcoming.org and EVDB
domain name speculation –> search engine optimization
page views –> cost per click
content management systems –> wikis

Proponents of the Web 2.0 approach believe that Web usage is increasingly oriented toward interaction and rudimentary social networks, which can serve content that exploits network effects with or without creating a visual, interactive web page.
My question to you; have you embraced the web 2.0 age? I would say you have in more ways than one, you just havent realised it yet.