- Bookmarked pages are archived and content immediately indexed/searchable

- Search/browse your bookmarks without leaving the page you're on

- Optionally monitor any page - or part of page - for changing content. Optional email alerts.

- Random example use-case: monitoring a BBC news article for updates: http://app.bookmarkerpro.com/changes?fmt=html&id=958&newestid=964&scroll=0

It's an early beta, we'd love to know what HNers thought. Free to sign up, try out: www.bookmarkerpro.com