If you are search engine optimizer, than you should teach us what it is I know something about it, but i dont want to tell you bad information. Just search in google "what is web 2.0" and click on wikipedia link. Good info there.
Web 2.0 (or Web 2) is the popular term for advanced Internet technology and applications including blogs, wikis, RSS and social bookmarking. The two major components of Web 2.0 are the technological advances enabled by Ajax and other new applications such as RSS and Eclipse and the user empowerment that they support.it is mainly involves in information sharing,link wheel and link building.
Basically where the internet which used to be a source of infinite information and connection is reduced to a disgusting state of social media through Facebook Youtube and Twitter where no actual knowledge is gained, just crappy memes are spread around and the internet becomes a complete waste of time. (yes run-on sentence my bad)
web 2.0 is a concept which makes the network as a platform for information sharing,user centered design and collaboration on the world wide web.
Web 2.0 is the term used to describe a second generation of the World Wide Web that focuses on the ability of people to collaborate and share information online. Web 2.0 basically refers to the transition from static HTML Web pages to a more dynamic Web that is more organized and is based on serving Web applications to the users.
You should know it as a SEO. By the way web 2.0 is a term strongly associated with "TIM O'REILLY". It takes the network as a platform to share information and other service among all corners of the WWW.
It's a term used with various definitions;basically, it refers to a "Social Revolution" of the web in which every or many users collaborate to create content. Such as a Social Networking pages, Wikipedia, Blogger and YouTube. for More information, Check it "Web 2.0" on Wikipedia.
Web 2.0 is basically a buzzword for all the new web applications coming out—Yahoo! Answers being one. It does not refer to any "new version" of the Internet, but simply a new wave of powerful web sites that bring the browsing experience closer to the desktop (e.g., making web apps that better resemble computer software).