Unmark is designed to help you actually do something with your bookmarks, rather than just hoard them. A simple layout puts the focus on your task at hand and friendly reminders keep you in line. Filtering options let you find what you're looking for.
Register for free or grab the open source version from GitHub.
Few, but key features
Preview Content InlineMake Notes & TagsSave from Menu BarBrowser ExtensionsImport & ExportSave Favorite Tweet Links
Use free or hosted
Filter saved bookmarks
Preview rich media
Add labels, notes & tags
Smart Labels
Search saved bookmarks
Import bookmarks
Save bookmarks
Keep bookmarks
Hosted for you
Price
Unlimited
Unlimited
Free
Unlimited
Unlimited
$30/year
Use Unmark free for as long as you'd like or upgrade to a paid account at any time. An open source version is available on GitHub. Fork it and set up your own install.