Here is some news that might be of interest to users and implementers of Solr
http://blog.comperiosearch.com/blog/2013/07/05/norch-a-search-engine-for-node-js/ Norch (http://fergiemcdowall.github.io/norch/) is a search engine written for Node.js. Norch uses the Node search-index module which is in turn written using the super fast levelDB library that Google open-sourced in 2011. The aim of Norch is to make a simple, fast search server, that requires minimal configuration to set up. Norch sacrifices complex functionality for a limited robust feature set, that can be used to set up a free test search engine for most enterprise scenarios. Currently Norch features Full text search Stopword removal Faceting Filtering Relevance weighting (tf-idf) Field weighting Paging (offset and resultset length) Norch can index any data that is marked up in the appropriate JSON format Download the first release of Norch (0.2.1) here ( https://github.com/fergiemcdowall/norch/releases)