Textacular exposes full text search capabilities from PostgreSQL, extending ActiveRecord with scopes making search easy and fun!

Mongosteen is a library that helps to easily add RESTful actions to mongoid models with support of search, pagination, scopes, history, json config.

A simple ABN search library for validating and obtaining ABN details from the Australian Business Register.

Provides experimental interface to partial search API in Opscode Hosted Chef

A Rubyesque interface to Gmail, with all the tools you will need. Search, read and send multipart emails; archive, mark as read/unread, delete emails; and manage labels.

Allows simple search forms to be created against an AR3 model and its associations, has useful view helpers for sort links and multiparameter fields as well.

Rumale::ModelSelection provides model validation techniques, such as k-fold cross-validation, time series cross-validation, and grid search, with Rumale interface.

API client for accessing the Elastic Workplace Search API with no dependencies.

Deprecated API client for accessing the Swiftype Enterprise Search API with no dependencies. Use elastic-enterprise-search instead.

A Google Appliance module for BrowserCMS. Used to display search results from a Google Mini/Search Appliance on a site.

Filterrific is a Rails Engine plugin that makes it easy to filter, search, and sort your ActiveRecord lists.

Search and view Blacklight resources on a map.

API client for accessing the Elastic App Search API with no dependencies.

find_by_param is a nice and easy way to handle permalinks and dealing with searching for to_param values

Improve usual knife commands thanks to partial-search

A DigitalGov Search sitelink generator

Milkode is line based local source code search engine. It have command line interface and web application. It will accelerate the code reading of your life.

Baidu Search Marketing Service API

API client for accessing the Elastic Site Search API with no dependencies (on Ruby 1.9, JSON needed for Ruby 1.8).

This gem provides a simple and powerful library for the Scribd API, allowing you to write Ruby applications or Ruby on Rails websites that upload, convert, display, search, and control documents in many formats. For more information on the Scribd platform, visit http://www.scribd.com/publisher