Produces output very similar to <a href="http://delicious.com/help/linkrolls" rel="nofollow ugc">delicious’s linkrolls script</a>, but in a way that isn’t guaranteed to mess with most themes.
Allows you to customize:
<ul>
<li>The number of links to display</li>
<li>Whether the link’s description is shown, if you provided one</li>
<li>Whether the link’s tags are shown</li>
<li>Whether the link’s favicon is shown</li>
<li>Showing only links with certain tags</li>
<li>And the ever-popular widget title</li>
</ul>
<h3>History</h3>
<ul>
<li>1.2.1: Bump the WordPress version and get rid of some legacy mentions of 
“del.icio.us”.</li>
<li>1.2: Update for the annoyingly backwards-incompatible nature of the new 
delicious.com design and v2 feeds api.</li>
<li>1.1: Allow multiple instances of the widget.</li>
<li>1.0: Initial release.</li>
</ul>

delicious-plus widget

Was a great plugin, but delicious have changed their API or discontinued the feeds or something, so it doesn't work anymore.
Edit: Found the solution. Just replace feed.delicious.com with previous.delicious.com in the PHP file.



Apparently doesn't work now

Makes available a widget to display your recent links tagged with delicious.

mrsajith

This plugin is for bookmarking your post into stumble,technorati, digg and delicious. You have to do nothing but just activate the plugin. It automatically add the bookmarking options just below to your posts.
Features:
<ul>
<li>Traffic : This plugin increses your website traffic</li>
<li>Cute Look: Transparent plugin will give your blog a nice look</li>
<li>Huge Icons:Since the bookmarking is implemented with huge images, the chances for bookmarking are very high</li>
</ul>
For Example and Details Visit : http://www.sajithmr.me/addtothis-wordpress-social-bookmarking-plugin/
My Technical Blog is : http://www.sajithmr.me
<h3>Arbitrary section</h3>
If you have any queires / complaints regarding this plugin, please feel free to mail me at admin.sajithmr@googlemail.com. Thank you
<h3>A brief Markdown Example</h3>
Ordered list:
<ol>
<li>Simple Installation</li>
<li>Cute Design</li>
<li>Better Placement</li>
</ol>
Unordered list:
<ul>
<li>Increment your traffic</li>
<li>Easy way bookmarking</li>
</ul>
See my blog for technical updates <a href="http://www.sajithmr.me/" title="Technical Digest" rel="nofollow ugc">http://www.sajithmr.me</a> .
<blockquote>
Use addtothis and get traffic into your site. Happy Blogging
</blockquote>

addtothis

Providing option for bookmarking your blog post in stumble,technorati ,delicious and digg

delicious-plus widget vs addtothis