This SDK is a client library to integrate the ContextualWeb Web Search API into your Ruby applications. The Web Search API provides a way to search webpages globally with access to content that is relevant to a user’s search query. This API is a RESTful service that provides results to search queries for web pages, images and news articles with results in JSON. ContextualWeb is a global search engine that crawls web pages from a variety of sources that over the world wide web.
Factery is a search API with a twist. Instead of links, it returns facts. Actually, it returns links, too. But the real interesting stuff is that it extracts the sentence or two that best answers a user's search.