Web 2.0 is an umbrella term for a number of technologies that are enabling the "second" generation of the Internet. This second generation is heavily focused upon the goal of building a community of loyal users who collaboratively build and nurture a knowledge set around a product, a company, a belief system, a hobby, or some other common shared interest.
Web 2.0 communities and applications tend to generate large amounts of data with increasing frequency, and they require a greater leniency regarding the type of data allowed to be generated by users. This leniency can lead to increased Web application vulnerabilities, a higher volume of data transfer between the user and the application, and an increased danger of data loss in the event of a disaster.
F5 products that can address the security and performance issues associated with Web 2.0 and its applications: BIG-IP