blogomatic is a handy wordpress plugin that will make a automatic link exchange tool as a widget on your blog.
Use the [android] shortcode to convert Android Market links into a QR code for non-Android devices and a direct link for Android devices.
Allows custom class names to be added to the Insert / Edit link functionality the WordPress Page and Post Editor.
Creates a widget to send the current page to a friend via email with a message.
This plugin improve the navigation of your blog by adding links to your post's content that match tags in use in your blog.
This plugin allows you to list links to your Media Library files. Great for offering white papers or other document downloads on your website.
SP-Video Plugin is a plugin that alow user to post a video from youtube without using embed code.
Author URI: http://wpdavis.com
This plugin will automatically link term names in your content to that term's detail page.
WP-TwitterBadge lets you easily add a small Twitter badge to the side of your blog to invite your visitors to follow you on Twitter!
Put a hidden wp-admin/login link in the top-left corner, visible on mouseover.
LinkXL is a fully-automated text links marketplace. Use the LinkXL plugin to monetize your site by selling contextual links, automatically.
For content by the visitor in social networks
Powered By: Repost.Me --- A side bar widget that has configurable image icons (32x32 pixels in size) with customizable links for various social networ
This plugin permits you to easily create a link to an existing content of your site.
WP-Media-SiteMap generate a sitemap of all your media content : images, video, flash animation.
RSS link for this tag.