I had some thought thanks to this video. What we want to create is not an archive, it’s a handy history organisor for the future, a web-based control panel. People get old and tend to forget what they like (from usernames & passwords to favorite films, shops, …) at a certain time. Imagine if you could search, select detected keywords from tag clouds or other 3D animated presentations so you can sort it(/yourself) out.
Promote yourself, express yourself through sharing your personal online history and interests (=your own online ecosystem).