Shared Links web application for new generation Book Mark features

We have a good book mark applications around. But I think we need a new generation book marking application.
Features of this new generation Book marking web application
1. Basic:
a. Each user has an account and basic functionalities for book marking.
b. Book Mark management
c. Each user can share their bookmarks to another user
2. Graphical
a. Each user will be shown as a star in a dark sky. He can see his friends as
other stars
b. The more reach in a Book Marking a user, the brighter star he will get.
3. Future Scope
a. This can be a kind of community building site


I am thinking to park a domain named starlinks.com or something like this.