StefanMz

Grouped Links Widget can use any number of widget instances to group links by their associated link categories. This adds a bit more CMS functionality to WordPress.
If the blogroll is grouped into link categories and each category contains internal tag references, then you can flexibly group link categories and put these link groups into your sitebar(s). This, of course, works with traditional external links put in a blogroll too.
Each group of link categories can be sorted by name acending or decending. If simple sorting doesn’t fit to your desired order to be appear in the sidebar, then create more than one link group and place them in the sidebar as you wish.
In order to adapt Grouped Links Widget to different HTML theme codes, HTML tags can be set for each link group and for each title within the link group. However, default values should work with most themes.
Grouped Links Widget is a simple widget, it mainly uses wp_list_bookmarks. Version 2.0 was completely refactored in order to adapt to the new WordPress 2.8 multi widget technique. If you want to add more functionality, don’t hesitate to modify the code. 😉
Grouped Links Widget’s homepage: <a href="http://groupedlinks.wordpress.com/" rel="nofollow ugc">http://groupedlinks.wordpress.com/</a>

Grouped Links Widget

Grouped Links Widget can use an unlimited number of widget instances to group links by their associated link categories.

SuperLinks replaces the standard WordPress 2.5 Links widget with a more customizable one. With 
SuperLinks you can add as many Links widgets as you want, and set the display options for each 
widget. For instance, you can set which Links category is displayed on each block.
SuperLinks was inspired by the LinkBlock plugin, which provided a very similar service. However, 
LinkBlock development stopped before WordPress 2.5, so SuperLinks was created to fill the void.
Development of SuperLinks was greatly aided by reading the source of some existing plugins. They 
are: 
* Lorna Timbah’s “Top Commentators Widget” (http://webgrrrl.net/archives/my-top-commentators-widget-quick-dirty.htm) 
* The original LinkBlock widget (LinkBlock: http://www.optera.net/projects/wordpress/linkblock/) 
* The stock WordPress widgets found in widgets.php 
Thanks to the developers of those plugins for the help their code provided!

SuperLinks v0.1

SuperLinks is a sidebar widget that gives you greater control of displaying your links and blogroll.

Grouped Links Widget vs SuperLinks v0.1