<p>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.</p>
<p>Allows you to customize:</p>
<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<br />
“del.icio.us”.</li>
<li>1.2: Update for the annoyingly backwards-incompatible nature of the new<br />
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.

Xonox

<p>Tilt Social Share Widget is a simple widget that allows you to enable sharing of your posts and/or pages.</p>
<h4>Available Services</h4>
<p>With Tilt Social Share Widget you can activate the following sharing services:</p>
<ul>
<li>Del.icio.us</li>
<li>Designbump</li>
<li>Digg</li>
<li>Diigo</li>
<li>Evernote</li>
<li>Facebook</li>
<li>Friendfeed</li>
<li>Google+</li>
<li>Google Bookmarks</li>
<li>Google Buzz</li>
<li>LinkedIn</li>
<li>Newsvine</li>
<li>Ping.fm</li>
<li>Pinterest</li>
<li>Posterous</li>
<li>Reddit</li>
<li>Slashdot</li>
<li>StumbleUpon</li>
<li>Technorati</li>
<li>Tumblr</li>
<li>Twitter</li>
<li>Yahoo Bookmarks</li>
</ul>
<h4>More Information</h4>
<p>To know more about Tilt Social Share Widget go to <a href="http://xonoxlabs.com/94/tilt-social-share-widget" rel="nofollow ugc">xonoxlabs.com</a></p>


Tilt Social Share Widget

Tilt Social Share Widget allows your users to quickly share your content on social sites. View "Description" tab for available services.

delicious-plus widget vs Tilt Social Share Widget