The application stream is simply an account of what we have experienced over the past ten to fi fteen years, namely the Web as an ever-growing and omnipresent library of information that we access through search engines and portals, the Web as a commerce platform through which people and companies do major portions of their business, and the Web as a media repository that keeps lots of things around for free.
The technology stream touches upon the technological advances underneath the Web that have enabled its evolution and development (and which actually keep evolving).
The user participation and contribution stream looks at how people perceive and use the Web and how this has changed over the past fi fteen years in some considerable ways. Since fi fteen years is roughly half a generation, it will not come as a surprise that, especially, the younger generation today deals and interacts with the Web in an entirely different way than people did when it all started.