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.
Optimizely - A/B testing you'll actually use.
ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.
Evergage - Evergage's real time web personalization software can help you boost engagement, increase revenue and drive more conversions. Web personalization software that's easy to use.
Apache Solr - Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and...
Qubit - Qubit is a web personalization platform founded by former Google workers, using innovative technology to collect, store, process, and output data to optimize consumers' experiences on the web. Read more about Qubit.