Search is a much needed discovery tool on any website. Doesnt mean that it has to be costly. With search technology maturing, Expertrec offers a high quality search experience at an affordable cost.
Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.
UI Garage - Specific mobile and web design patterns for your inspiration
ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.
Muzli - UI/UX and Design Inspiration Chrome Extension
Apache Solr - Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and...
Design Hunt - Curated design inspiration for everyone