This plugin by jackdewey is used to be able to create a page on your web site that will contain a list of all of the link categories that you have defined inside of the Links section of the WordPress administration, along with all links defined in these categories. The user can select a sub-set of categories to be displayed or not displayed.
Link Library also offers a mode where only one category is shown at a time, using AJAX or HTML Get queries to load other categories based on user input. It can display a search box and find results based on queries. It can also display a form to accept user submissions and allow the site administrator to moderate them before listing the new entries. Finally, it can generate an RSS feed for your link collection so that people can be aware of additions to your link library.
For links that carry RSS feed information, Link Library can display a preview of the latest feed items inline with the all links or in a separate preview window.
New to Version 4.0:
New drag-and-drop interface to specify order of link elements
Ability to specify target link for link categories to allow categories to be on seperate page from link library
New section in link edition screen to specify new data elements (Reciprocal Link, E-mail, Second Web Address, Telephone)
Ability to batch import links through csv files
Ability to import/export setting sets using csv files
Collection of click-through stats for links, Link category permalinks
Update page title
French Translation of Admin Interface (other translations welcome)
Can now generate thumbnail or favorite icon or a single-link basis
Option to store user information when available upon link submission
Download and info: http://wordpress.org/extend/plugins/link-library/