Free tag extraction from content using Yahoo! search API.

Search twitter hashtags from the command line

SyntaxDB allows users to search syntax of various languages. This gem will provide access to SyntaxDB apis in ruby

Simple TabuSearch framework

Ruby Google Search Mashup Framework

Digs YUM repositories to search for RPM packages

A semantic offline search

tmb provides a command line interface to manage your textmate bundles, allowing you to search for new bundles on github, install them, and uninstall existing local bundles.

search scraping

Help searching the WFRMLS

Discover the correct typo of a word using Google search.

Read and search for content on MediaWiki-powered sites.

A federated search API for influence data

Wik - Quick and easy Wikipedia searches

neighbor library search gem

Ruby API to access WorldCat Open Search webservice. Based on WCAPI Gem.

Rails plugin for Xapian search, built on XapianFu and DelayedJob.

Ruby wrapper for the Yahoo! Local Search API

Quick and painless XPath searching for Ruby using libxml2

Searches for videos on YouTube using YouTube API v3