Ma.gnolia starts with making the social side of social bookmarking work better. With contacts, groups and different ways to share bookmarks both within and outside of Ma.gnolia, make working together on a casual basis or more formal projects fun and easy.

http://ma.gnolia.com

• Bookmark links, pages or images
• Automatically save context with each bookmark
• Search in titles or context or browse by date or site
• Tag bookmarks and import your existing tags
• No software to install, just a bookmarklet
• Integrates with del.icio.us, Google, eBay and more

http://www.looklater.com/

By using Web 2.0 features such as AJAX, folksonomy (tagging), social elements such as voting/commenting and the listible’s listonomy (listing), resources can be sorted in a way that will be digestible. You can search what you need quick. You can contribute your resources easier.

http://www.listible.com

Diigo (dee’go) is about "Social Annotation". By combining social bookmarking, clippings, in situ annotation, tagging, full-text search, easy sharing and interactions, Diigo offers a powerful personal tool and a rich social platform for knowledge users, and in the process, turns the entire web into a writable, participatory and interactive media.

The social annotation service introduced by Diigo allows users to add highlights and sticky notes, in situ, on any web page they read. Imagine a giant transparency overlaying on top of all the web pages. Users can write on the transparency as they wish, as private notes or public comments. And they can read public comments on the transparency left by other readers of the same page, and hear their "two cents" and interact with them.

http://www.diigo.com

Connotea is a place to keep links to the articles you read and the websites you use, and a place to find them again. It is also a place where you can discover new articles and websites through sharing your links with other users. By saving your links and references to Connotea they are instantly on the web, which means that they are available to you from any computer and that you can point your friends and colleagues to them.

http://www.connotea.org

This is a unique application that lets you redline any webpage. With ButterFly-Reader© you can add hyperlinks & notes, highlight words, look up information, translate selections and more. All within the same webpage and all within one single mouse-click.

http://butterflyproject.nl

BuddyMarks allows you to store all your favorites on-line and be able to get to them from anywhere. Home, school, the library… at work, leisure, even on vacation in Tahiti. You can easily upload the favorites you already have, and adding new ones is as easy as the way you bookmark things now, and you can do it anywhere.

http://buddymarks.com

It’s a kind of drop down menu consisting of widgets (called blummlets) that provide rich functionality. It works on almost every page on the web*. Just click on it at your toolbar.

http://www.blummy.com

Make lists & share with others! Or keep em’ private. Save websites for reference, research, or for fun! Read those sites later! When you have the time. Have them appear in your links on your blog instantly!

http://blinklist.com

deliGoo is an extension for Firefox (2.0+) and Internet Explorer (6.0+), which is built into your browser in the form of an additional button on the tools’ panel. deliGoo searches on the sites, indicated in your del.icio.us bookmarks. With its help you can find the necessary page according to any phrase or word, which it contains.

http://deligoo.com