Use sphinx search to search content and provide related posts.
Imeem Search Plugin developed by DidYaKnow LLC brings the power of Imeem Music Search to WordPress based on the tag values of a post.
Charity Search and Charity Donation Plugin. Add 2.1 million US charities to your WordPress site instantly. America’s most trusted charity resource!
Sidebar Widget to get carpooling results.
Displays tweets related to your posts, ordered by rank. Admin Options -> Tweefind.
Provides suggestions while typing a search query using the Yahoo Suggest API.
Copyright (c) 2008 Released under the GPL license http://www.gnu.org/licenses/gpl.txt
Find in-page text using synonyms
All-in-one-Qype-Suite "Qypifys" your Blog! Add tooltip-links to Qype Places, geotag Post & pimp sidebar with 3 nice Qype Widgets
WooSearch is a search plugin which provides real-time ajax product search based on WooCommerce.
It allows to index the custom post types, taxonomies with custom fields easily.
A tool for viewing, sorting, searching, exporting, printing, manipulating the contents of HTML tables derived from tables found in your database.
Zoomd Search is a monetizable site search – intuitive, beautiful and visually rich
Sphinx Search is a plugin that uses the Search API plugin and Sphinx as a backend for searching. It searches comments, posts, and pages and also allow
Widget that displays on your WordPress search results page with similar items from your Flickr, YouTube, and Twitter feeds.
EasyfullsearchWP is the best way to improve searches, providing more relevant results by controlling many features. Most of fields can be indexed.
Display contextually related posts from your blog using the Searchles Discovery Platform.
SearchEkko is a "related posts" widget that uses visitors' search referral terms to find and present your best-matching posts.
Adds a widget that allows users to search for their US congressional legislators. Requires a Sunlight Labs API Key.
Break your search up by file types. Implements methods for separating searches by type [post|video|audio|image]
Adds post wise tweets at the end of your post.
Automatically update the search index of QuickSearch.
Search Taxonomy GT - This plugin adds a functionality inside the taxonomy metabox when inserting/editing posts for live taxonomy term search.
A plugin which provide search by user's website's url in admin users listing.
The newsAnglr for WordPress Plugin shows related articles from a continuously growing pool of sources using a unique matching algorithm.
Outdoor activity plugin. Lets you add recreational locations to your site from one of the largest databases of outdoor sports on the web.
Adjust your conditional "OR" operator on the wp search query
Plugin for deploying a local business search, using the CityGrid API
This Plugins grabs the referral google search string and displays a "Can We help you?" Box
This Plugin allows you to quickly and easily include the useful features of the Q-Sensei Search Engine directly into your blog.