Lstack is a bookmarking tool that lets you bookmark webpages you find interesting while browsing the web. It offers a bookmarklet that should work on Firefox and Chrome, and you may also email it links from your computer or phone to save items to your list.

What differentiates it from other such tools out there is a feature called smart tags. Examples: source:makeuseof.com, score:2.9, price:170 USD etc etc. This could prove to be pretty useful when it comes to filtering a huge collection of bookmarks.

Another aspect of this tool is that your bookmarks are private by default unlike most of the other such services where the default mode is public mode. So you might want to use this if you are tired of selecting the private mode frequently while saving items.

• Online bookmarking service.
• Offers smart tags for better sorting of bookmarks.
• Bookmarks private by default.

Check out Lstack @ www.lstack.com